Home / 527,133.74-727,444.90-285,416.47

Finding the Fourth Proportional to 527,133.74, 727,444.90 and 285,416.47

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Solution

The fourth proportional to 527,133.74, 727,444.90 and 285,416.47 is: 393,874.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,133.74 : 727,444.90 = 285,416.47 : x
  2. Step 2: Convert to fraction form
    527,133.74/727,444.90 = 285,416.47/x
  3. Step 3: Cross multiply
    527,133.74x = 727,444.90 × 285,416.47
  4. Step 4: Simplify right side
    527,133.74x = 207,624,755,477.50
  5. Step 5: Solve for x
    x = 207,624,755,477.50/527,133.74
  6. Step 6: Final answer
    x = 393,874.91

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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.