Home / 945,423.39-1,418,147.39-314,337.20

Finding the Fourth Proportional to 945,423.39, 1,418,147.39 and 314,337.20

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Solution

The fourth proportional to 945,423.39, 1,418,147.39 and 314,337.20 is: 471,509.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,423.39 : 1,418,147.39 = 314,337.20 : x
  2. Step 2: Convert to fraction form
    945,423.39/1,418,147.39 = 314,337.20/x
  3. Step 3: Cross multiply
    945,423.39x = 1,418,147.39 × 314,337.20
  4. Step 4: Simplify right side
    945,423.39x = 445,776,482,519.43
  5. Step 5: Solve for x
    x = 445,776,482,519.43/945,423.39
  6. Step 6: Final answer
    x = 471,509.89

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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.