Home / 988,476.20-1,482,714.30-389,456.90

Finding the Fourth Proportional to 988,476.20, 1,482,714.30 and 389,456.90

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Solution

The fourth proportional to 988,476.20, 1,482,714.30 and 389,456.90 is: 584,185.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,476.20 : 1,482,714.30 = 389,456.90 : x
  2. Step 2: Convert to fraction form
    988,476.20/1,482,714.30 = 389,456.90/x
  3. Step 3: Cross multiply
    988,476.20x = 1,482,714.30 × 389,456.90
  4. Step 4: Simplify right side
    988,476.20x = 577,453,314,863.67
  5. Step 5: Solve for x
    x = 577,453,314,863.67/988,476.20
  6. Step 6: Final answer
    x = 584,185.35

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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.