Home / 447,587.43-671,381.14-428,150.46

Finding the Fourth Proportional to 447,587.43, 671,381.14 and 428,150.46

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Solution

The fourth proportional to 447,587.43, 671,381.14 and 428,150.46 is: 642,225.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,587.43 : 671,381.14 = 428,150.46 : x
  2. Step 2: Convert to fraction form
    447,587.43/671,381.14 = 428,150.46/x
  3. Step 3: Cross multiply
    447,587.43x = 671,381.14 × 428,150.46
  4. Step 4: Simplify right side
    447,587.43x = 287,452,143,926.32
  5. Step 5: Solve for x
    x = 287,452,143,926.32/447,587.43
  6. Step 6: Final answer
    x = 642,225.69

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Similar ratio
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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.