Home / 448,819.38-670,319.15-406,615.14

Finding the Fourth Proportional to 448,819.38, 670,319.15 and 406,615.14

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Solution

The fourth proportional to 448,819.38, 670,319.15 and 406,615.14 is: 607,286.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,819.38 : 670,319.15 = 406,615.14 : x
  2. Step 2: Convert to fraction form
    448,819.38/670,319.15 = 406,615.14/x
  3. Step 3: Cross multiply
    448,819.38x = 670,319.15 × 406,615.14
  4. Step 4: Simplify right side
    448,819.38x = 272,561,912,988.86
  5. Step 5: Solve for x
    x = 272,561,912,988.86/448,819.38
  6. Step 6: Final answer
    x = 607,286.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.