Home / 753,110.28-1,129,665.84-472,824.36

Finding the Fourth Proportional to 753,110.28, 1,129,665.84 and 472,824.36

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Solution

The fourth proportional to 753,110.28, 1,129,665.84 and 472,824.36 is: 709,236.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,110.28 : 1,129,665.84 = 472,824.36 : x
  2. Step 2: Convert to fraction form
    753,110.28/1,129,665.84 = 472,824.36/x
  3. Step 3: Cross multiply
    753,110.28x = 1,129,665.84 × 472,824.36
  4. Step 4: Simplify right side
    753,110.28x = 534,133,527,811.86
  5. Step 5: Solve for x
    x = 534,133,527,811.86/753,110.28
  6. Step 6: Final answer
    x = 709,236.80

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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.