Home / 1,115,327.28-1,672,987.56-316,609.52

Finding the Fourth Proportional to 1,115,327.28, 1,672,987.56 and 316,609.52

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Solution

The fourth proportional to 1,115,327.28, 1,672,987.56 and 316,609.52 is: 474,913.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,327.28 : 1,672,987.56 = 316,609.52 : x
  2. Step 2: Convert to fraction form
    1,115,327.28/1,672,987.56 = 316,609.52/x
  3. Step 3: Cross multiply
    1,115,327.28x = 1,672,987.56 × 316,609.52
  4. Step 4: Simplify right side
    1,115,327.28x = 529,683,788,337.57
  5. Step 5: Solve for x
    x = 529,683,788,337.57/1,115,327.28
  6. Step 6: Final answer
    x = 474,913.33

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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.