Home / 527,052.79-727,332.69-285,335.20

Finding the Fourth Proportional to 527,052.79, 727,332.69 and 285,335.20

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Solution

The fourth proportional to 527,052.79, 727,332.69 and 285,335.20 is: 393,762.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,052.79 : 727,332.69 = 285,335.20 : x
  2. Step 2: Convert to fraction form
    527,052.79/727,332.69 = 285,335.20/x
  3. Step 3: Cross multiply
    527,052.79x = 727,332.69 × 285,335.20
  4. Step 4: Simplify right side
    527,052.79x = 207,533,618,567.69
  5. Step 5: Solve for x
    x = 207,533,618,567.69/527,052.79
  6. Step 6: Final answer
    x = 393,762.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.