Home / 914,543.20-1,371,814.80-283,650.40

Finding the Fourth Proportional to 914,543.20, 1,371,814.80 and 283,650.40

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Solution

The fourth proportional to 914,543.20, 1,371,814.80 and 283,650.40 is: 425,475.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,543.20 : 1,371,814.80 = 283,650.40 : x
  2. Step 2: Convert to fraction form
    914,543.20/1,371,814.80 = 283,650.40/x
  3. Step 3: Cross multiply
    914,543.20x = 1,371,814.80 × 283,650.40
  4. Step 4: Simplify right side
    914,543.20x = 389,115,816,745.92
  5. Step 5: Solve for x
    x = 389,115,816,745.92/914,543.20
  6. Step 6: Final answer
    x = 425,475.60

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Double scale
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Similar ratio
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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.