Home / 744,706.60-1,117,103.10-212,266.60

Finding the Fourth Proportional to 744,706.60, 1,117,103.10 and 212,266.60

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Solution

The fourth proportional to 744,706.60, 1,117,103.10 and 212,266.60 is: 318,412.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,706.60 : 1,117,103.10 = 212,266.60 : x
  2. Step 2: Convert to fraction form
    744,706.60/1,117,103.10 = 212,266.60/x
  3. Step 3: Cross multiply
    744,706.60x = 1,117,103.10 × 212,266.60
  4. Step 4: Simplify right side
    744,706.60x = 237,123,676,886.46
  5. Step 5: Solve for x
    x = 237,123,676,886.46/744,706.60
  6. Step 6: Final answer
    x = 318,412.21

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Double scale
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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.