Home / 865,511.10-1,298,266.65-510,695.10

Finding the Fourth Proportional to 865,511.10, 1,298,266.65 and 510,695.10

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Solution

The fourth proportional to 865,511.10, 1,298,266.65 and 510,695.10 is: 766,042.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,511.10 : 1,298,266.65 = 510,695.10 : x
  2. Step 2: Convert to fraction form
    865,511.10/1,298,266.65 = 510,695.10/x
  3. Step 3: Cross multiply
    865,511.10x = 1,298,266.65 × 510,695.10
  4. Step 4: Simplify right side
    865,511.10x = 663,018,416,648.42
  5. Step 5: Solve for x
    x = 663,018,416,648.42/865,511.10
  6. Step 6: Final answer
    x = 766,042.65

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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.