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Finding the Fourth Proportional to 638,403.05, 954,781.22 and 567,821.27

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Solution

The fourth proportional to 638,403.05, 954,781.22 and 567,821.27 is: 849,220.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,403.05 : 954,781.22 = 567,821.27 : x
  2. Step 2: Convert to fraction form
    638,403.05/954,781.22 = 567,821.27/x
  3. Step 3: Cross multiply
    638,403.05x = 954,781.22 × 567,821.27
  4. Step 4: Simplify right side
    638,403.05x = 542,145,088,719.06
  5. Step 5: Solve for x
    x = 542,145,088,719.06/638,403.05
  6. Step 6: Final answer
    x = 849,220.70

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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.