Home / 769,125.20-1,152,132.60-436,312.40

Finding the Fourth Proportional to 769,125.20, 1,152,132.60 and 436,312.40

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Solution

The fourth proportional to 769,125.20, 1,152,132.60 and 436,312.40 is: 653,586.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,125.20 : 1,152,132.60 = 436,312.40 : x
  2. Step 2: Convert to fraction form
    769,125.20/1,152,132.60 = 436,312.40/x
  3. Step 3: Cross multiply
    769,125.20x = 1,152,132.60 × 436,312.40
  4. Step 4: Simplify right side
    769,125.20x = 502,689,739,824.24
  5. Step 5: Solve for x
    x = 502,689,739,824.24/769,125.20
  6. Step 6: Final answer
    x = 653,586.36

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Double scale
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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.