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Finding the Fourth Proportional to 638,402.96, 954,780.96 and 567,820.82

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Solution

The fourth proportional to 638,402.96, 954,780.96 and 567,820.82 is: 849,219.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,402.96 : 954,780.96 = 567,820.82 : x
  2. Step 2: Convert to fraction form
    638,402.96/954,780.96 = 567,820.82/x
  3. Step 3: Cross multiply
    638,402.96x = 954,780.96 × 567,820.82
  4. Step 4: Simplify right side
    638,402.96x = 542,144,507,627.59
  5. Step 5: Solve for x
    x = 542,144,507,627.59/638,402.96
  6. Step 6: Final answer
    x = 849,219.92

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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.