Home / 915,645.90-1,373,598.45-284,493.90

Finding the Fourth Proportional to 915,645.90, 1,373,598.45 and 284,493.90

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Solution

The fourth proportional to 915,645.90, 1,373,598.45 and 284,493.90 is: 426,781.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,645.90 : 1,373,598.45 = 284,493.90 : x
  2. Step 2: Convert to fraction form
    915,645.90/1,373,598.45 = 284,493.90/x
  3. Step 3: Cross multiply
    915,645.90x = 1,373,598.45 × 284,493.90
  4. Step 4: Simplify right side
    915,645.90x = 390,780,380,074.46
  5. Step 5: Solve for x
    x = 390,780,380,074.46/915,645.90
  6. Step 6: Final answer
    x = 426,781.12

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1.5x scale

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.