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Finding the Fourth Proportional to 495,897.80, 745,401.90 and 486,566.60

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Solution

The fourth proportional to 495,897.80, 745,401.90 and 486,566.60 is: 731,375.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,897.80 : 745,401.90 = 486,566.60 : x
  2. Step 2: Convert to fraction form
    495,897.80/745,401.90 = 486,566.60/x
  3. Step 3: Cross multiply
    495,897.80x = 745,401.90 × 486,566.60
  4. Step 4: Simplify right side
    495,897.80x = 362,687,668,116.54
  5. Step 5: Solve for x
    x = 362,687,668,116.54/495,897.80
  6. Step 6: Final answer
    x = 731,375.84

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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.