Home / 915,399.50-1,373,099.52-284,313.38

Finding the Fourth Proportional to 915,399.50, 1,373,099.52 and 284,313.38

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Solution

The fourth proportional to 915,399.50, 1,373,099.52 and 284,313.38 is: 426,470.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,399.50 : 1,373,099.52 = 284,313.38 : x
  2. Step 2: Convert to fraction form
    915,399.50/1,373,099.52 = 284,313.38/x
  3. Step 3: Cross multiply
    915,399.50x = 1,373,099.52 × 284,313.38
  4. Step 4: Simplify right side
    915,399.50x = 390,390,565,607.58
  5. Step 5: Solve for x
    x = 390,390,565,607.58/915,399.50
  6. Step 6: Final answer
    x = 426,470.15

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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.