Home / 742,102.20-1,109,654.10-553,145.40

Finding the Fourth Proportional to 742,102.20, 1,109,654.10 and 553,145.40

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Solution

The fourth proportional to 742,102.20, 1,109,654.10 and 553,145.40 is: 827,109.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,102.20 : 1,109,654.10 = 553,145.40 : x
  2. Step 2: Convert to fraction form
    742,102.20/1,109,654.10 = 553,145.40/x
  3. Step 3: Cross multiply
    742,102.20x = 1,109,654.10 × 553,145.40
  4. Step 4: Simplify right side
    742,102.20x = 613,800,061,006.14
  5. Step 5: Solve for x
    x = 613,800,061,006.14/742,102.20
  6. Step 6: Final answer
    x = 827,109.88

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Double scale
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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.