Home / 527,101.72-727,399.40-285,384.25

Finding the Fourth Proportional to 527,101.72, 727,399.40 and 285,384.25

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Solution

The fourth proportional to 527,101.72, 727,399.40 and 285,384.25 is: 393,829.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,101.72 : 727,399.40 = 285,384.25 : x
  2. Step 2: Convert to fraction form
    527,101.72/727,399.40 = 285,384.25/x
  3. Step 3: Cross multiply
    527,101.72x = 727,399.40 × 285,384.25
  4. Step 4: Simplify right side
    527,101.72x = 207,588,332,219.45
  5. Step 5: Solve for x
    x = 207,588,332,219.45/527,101.72
  6. Step 6: Final answer
    x = 393,829.74

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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.