Home / 545,336.31-752,565.42-303,607.20

Finding the Fourth Proportional to 545,336.31, 752,565.42 and 303,607.20

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Solution

The fourth proportional to 545,336.31, 752,565.42 and 303,607.20 is: 418,978.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,336.31 : 752,565.42 = 303,607.20 : x
  2. Step 2: Convert to fraction form
    545,336.31/752,565.42 = 303,607.20/x
  3. Step 3: Cross multiply
    545,336.31x = 752,565.42 × 303,607.20
  4. Step 4: Simplify right side
    545,336.31x = 228,484,279,983.02
  5. Step 5: Solve for x
    x = 228,484,279,983.02/545,336.31
  6. Step 6: Final answer
    x = 418,978.67

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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.