Home / 945,412.92-1,418,119.56-314,332.20

Finding the Fourth Proportional to 945,412.92, 1,418,119.56 and 314,332.20

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Solution

The fourth proportional to 945,412.92, 1,418,119.56 and 314,332.20 is: 471,498.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,412.92 : 1,418,119.56 = 314,332.20 : x
  2. Step 2: Convert to fraction form
    945,412.92/1,418,119.56 = 314,332.20/x
  3. Step 3: Cross multiply
    945,412.92x = 1,418,119.56 × 314,332.20
  4. Step 4: Simplify right side
    945,412.92x = 445,760,641,157.83
  5. Step 5: Solve for x
    x = 445,760,641,157.83/945,412.92
  6. Step 6: Final answer
    x = 471,498.36

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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.