Home / 673,839.76-1,010,720.76-407,528.78

Finding the Fourth Proportional to 673,839.76, 1,010,720.76 and 407,528.78

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Solution

The fourth proportional to 673,839.76, 1,010,720.76 and 407,528.78 is: 611,269.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,839.76 : 1,010,720.76 = 407,528.78 : x
  2. Step 2: Convert to fraction form
    673,839.76/1,010,720.76 = 407,528.78/x
  3. Step 3: Cross multiply
    673,839.76x = 1,010,720.76 × 407,528.78
  4. Step 4: Simplify right side
    673,839.76x = 411,897,798,243.47
  5. Step 5: Solve for x
    x = 411,897,798,243.47/673,839.76
  6. Step 6: Final answer
    x = 611,269.66

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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.