Home / 607,520.30-911,280.45-495,327.20

Finding the Fourth Proportional to 607,520.30, 911,280.45 and 495,327.20

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Solution

The fourth proportional to 607,520.30, 911,280.45 and 495,327.20 is: 742,990.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,520.30 : 911,280.45 = 495,327.20 : x
  2. Step 2: Convert to fraction form
    607,520.30/911,280.45 = 495,327.20/x
  3. Step 3: Cross multiply
    607,520.30x = 911,280.45 × 495,327.20
  4. Step 4: Simplify right side
    607,520.30x = 451,381,993,713.24
  5. Step 5: Solve for x
    x = 451,381,993,713.24/607,520.30
  6. Step 6: Final answer
    x = 742,990.80

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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.