Home / 745,411.60-1,118,117.40-272,112.40

Finding the Fourth Proportional to 745,411.60, 1,118,117.40 and 272,112.40

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Solution

The fourth proportional to 745,411.60, 1,118,117.40 and 272,112.40 is: 408,168.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,411.60 : 1,118,117.40 = 272,112.40 : x
  2. Step 2: Convert to fraction form
    745,411.60/1,118,117.40 = 272,112.40/x
  3. Step 3: Cross multiply
    745,411.60x = 1,118,117.40 × 272,112.40
  4. Step 4: Simplify right side
    745,411.60x = 304,253,609,195.76
  5. Step 5: Solve for x
    x = 304,253,609,195.76/745,411.60
  6. Step 6: Final answer
    x = 408,168.60

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Double scale
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Similar ratio
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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.