Home / 945,421.88-1,418,145.11-314,335.69

Finding the Fourth Proportional to 945,421.88, 1,418,145.11 and 314,335.69

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Solution

The fourth proportional to 945,421.88, 1,418,145.11 and 314,335.69 is: 471,507.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,421.88 : 1,418,145.11 = 314,335.69 : x
  2. Step 2: Convert to fraction form
    945,421.88/1,418,145.11 = 314,335.69/x
  3. Step 3: Cross multiply
    945,421.88x = 1,418,145.11 × 314,335.69
  4. Step 4: Simplify right side
    945,421.88x = 445,773,619,501.83
  5. Step 5: Solve for x
    x = 445,773,619,501.83/945,421.88
  6. Step 6: Final answer
    x = 471,507.62

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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.