Home / 508,726.20-763,089.30-243,005.70

Finding the Fourth Proportional to 508,726.20, 763,089.30 and 243,005.70

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Solution

The fourth proportional to 508,726.20, 763,089.30 and 243,005.70 is: 364,508.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,726.20 : 763,089.30 = 243,005.70 : x
  2. Step 2: Convert to fraction form
    508,726.20/763,089.30 = 243,005.70/x
  3. Step 3: Cross multiply
    508,726.20x = 763,089.30 × 243,005.70
  4. Step 4: Simplify right side
    508,726.20x = 185,435,049,509.01
  5. Step 5: Solve for x
    x = 185,435,049,509.01/508,726.20
  6. Step 6: Final answer
    x = 364,508.55

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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.