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Finding the Fourth Proportional to 612,098.18, 918,147.27 and 612,098.18

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Solution

The fourth proportional to 612,098.18, 918,147.27 and 612,098.18 is: 918,147.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,098.18 : 918,147.27 = 612,098.18 : x
  2. Step 2: Convert to fraction form
    612,098.18/918,147.27 = 612,098.18/x
  3. Step 3: Cross multiply
    612,098.18x = 918,147.27 × 612,098.18
  4. Step 4: Simplify right side
    612,098.18x = 561,996,268,348.23
  5. Step 5: Solve for x
    x = 561,996,268,348.23/612,098.18
  6. Step 6: Final answer
    x = 918,147.27

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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.