Home / 988,475.70-1,482,713.55-389,456.40

Finding the Fourth Proportional to 988,475.70, 1,482,713.55 and 389,456.40

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Solution

The fourth proportional to 988,475.70, 1,482,713.55 and 389,456.40 is: 584,184.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,475.70 : 1,482,713.55 = 389,456.40 : x
  2. Step 2: Convert to fraction form
    988,475.70/1,482,713.55 = 389,456.40/x
  3. Step 3: Cross multiply
    988,475.70x = 1,482,713.55 × 389,456.40
  4. Step 4: Simplify right side
    988,475.70x = 577,452,281,414.22
  5. Step 5: Solve for x
    x = 577,452,281,414.22/988,475.70
  6. Step 6: Final answer
    x = 584,184.60

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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.