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Finding the Fourth Proportional to 489,805.60, 734,708.40 and 486,695.20

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Solution

The fourth proportional to 489,805.60, 734,708.40 and 486,695.20 is: 730,042.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,805.60 : 734,708.40 = 486,695.20 : x
  2. Step 2: Convert to fraction form
    489,805.60/734,708.40 = 486,695.20/x
  3. Step 3: Cross multiply
    489,805.60x = 734,708.40 × 486,695.20
  4. Step 4: Simplify right side
    489,805.60x = 357,579,051,679.68
  5. Step 5: Solve for x
    x = 357,579,051,679.68/489,805.60
  6. Step 6: Final answer
    x = 730,042.80

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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.