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Finding the Fourth Proportional to 638,537.40, 957,806.10 and 566,652.60

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Solution

The fourth proportional to 638,537.40, 957,806.10 and 566,652.60 is: 849,978.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,537.40 : 957,806.10 = 566,652.60 : x
  2. Step 2: Convert to fraction form
    638,537.40/957,806.10 = 566,652.60/x
  3. Step 3: Cross multiply
    638,537.40x = 957,806.10 × 566,652.60
  4. Step 4: Simplify right side
    638,537.40x = 542,743,316,860.86
  5. Step 5: Solve for x
    x = 542,743,316,860.86/638,537.40
  6. Step 6: Final answer
    x = 849,978.90

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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.