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Finding the Fourth Proportional to 638,389.55, 954,760.97 and 567,807.77

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Solution

The fourth proportional to 638,389.55, 954,760.97 and 567,807.77 is: 849,200.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,389.55 : 954,760.97 = 567,807.77 : x
  2. Step 2: Convert to fraction form
    638,389.55/954,760.97 = 567,807.77/x
  3. Step 3: Cross multiply
    638,389.55x = 954,760.97 × 567,807.77
  4. Step 4: Simplify right side
    638,389.55x = 542,120,701,065.16
  5. Step 5: Solve for x
    x = 542,120,701,065.16/638,389.55
  6. Step 6: Final answer
    x = 849,200.46

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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.