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Finding the Fourth Proportional to 522,077.30, 783,115.95 and 272,726.90

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Solution

The fourth proportional to 522,077.30, 783,115.95 and 272,726.90 is: 409,090.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,077.30 : 783,115.95 = 272,726.90 : x
  2. Step 2: Convert to fraction form
    522,077.30/783,115.95 = 272,726.90/x
  3. Step 3: Cross multiply
    522,077.30x = 783,115.95 × 272,726.90
  4. Step 4: Simplify right side
    522,077.30x = 213,576,785,384.06
  5. Step 5: Solve for x
    x = 213,576,785,384.06/522,077.30
  6. Step 6: Final answer
    x = 409,090.35

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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.