Home / 920,150.60-1,380,225.90-521,569.85

Finding the Fourth Proportional to 920,150.60, 1,380,225.90 and 521,569.85

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Solution

The fourth proportional to 920,150.60, 1,380,225.90 and 521,569.85 is: 782,354.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,150.60 : 1,380,225.90 = 521,569.85 : x
  2. Step 2: Convert to fraction form
    920,150.60/1,380,225.90 = 521,569.85/x
  3. Step 3: Cross multiply
    920,150.60x = 1,380,225.90 × 521,569.85
  4. Step 4: Simplify right side
    920,150.60x = 719,884,215,629.12
  5. Step 5: Solve for x
    x = 719,884,215,629.12/920,150.60
  6. Step 6: Final answer
    x = 782,354.78

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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.