Home / 742,726.20-1,114,089.30-210,240.30

Finding the Fourth Proportional to 742,726.20, 1,114,089.30 and 210,240.30

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Solution

The fourth proportional to 742,726.20, 1,114,089.30 and 210,240.30 is: 315,360.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,726.20 : 1,114,089.30 = 210,240.30 : x
  2. Step 2: Convert to fraction form
    742,726.20/1,114,089.30 = 210,240.30/x
  3. Step 3: Cross multiply
    742,726.20x = 1,114,089.30 × 210,240.30
  4. Step 4: Simplify right side
    742,726.20x = 234,226,468,658.79
  5. Step 5: Solve for x
    x = 234,226,468,658.79/742,726.20
  6. Step 6: Final answer
    x = 315,360.45

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.