Home / 663,609.20-915,741.24-377,089.52

Finding the Fourth Proportional to 663,609.20, 915,741.24 and 377,089.52

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Solution

The fourth proportional to 663,609.20, 915,741.24 and 377,089.52 is: 520,361.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,609.20 : 915,741.24 = 377,089.52 : x
  2. Step 2: Convert to fraction form
    663,609.20/915,741.24 = 377,089.52/x
  3. Step 3: Cross multiply
    663,609.20x = 915,741.24 × 377,089.52
  4. Step 4: Simplify right side
    663,609.20x = 345,316,424,635.81
  5. Step 5: Solve for x
    x = 345,316,424,635.81/663,609.20
  6. Step 6: Final answer
    x = 520,361.12

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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.