Home / 745,862.30-1,118,793.45-272,486.15

Finding the Fourth Proportional to 745,862.30, 1,118,793.45 and 272,486.15

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Solution

The fourth proportional to 745,862.30, 1,118,793.45 and 272,486.15 is: 408,729.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,862.30 : 1,118,793.45 = 272,486.15 : x
  2. Step 2: Convert to fraction form
    745,862.30/1,118,793.45 = 272,486.15/x
  3. Step 3: Cross multiply
    745,862.30x = 1,118,793.45 × 272,486.15
  4. Step 4: Simplify right side
    745,862.30x = 304,855,719,835.72
  5. Step 5: Solve for x
    x = 304,855,719,835.72/745,862.30
  6. Step 6: Final answer
    x = 408,729.23

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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.