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Finding the Fourth Proportional to 673,291.27, 928,301.56 and 431,175.79

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Solution

The fourth proportional to 673,291.27, 928,301.56 and 431,175.79 is: 594,484.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,291.27 : 928,301.56 = 431,175.79 : x
  2. Step 2: Convert to fraction form
    673,291.27/928,301.56 = 431,175.79/x
  3. Step 3: Cross multiply
    673,291.27x = 928,301.56 × 431,175.79
  4. Step 4: Simplify right side
    673,291.27x = 400,261,158,573.67
  5. Step 5: Solve for x
    x = 400,261,158,573.67/673,291.27
  6. Step 6: Final answer
    x = 594,484.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.