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Finding the Fourth Proportional to 518,368.20, 777,552.30 and 488,843.70

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Solution

The fourth proportional to 518,368.20, 777,552.30 and 488,843.70 is: 733,265.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,368.20 : 777,552.30 = 488,843.70 : x
  2. Step 2: Convert to fraction form
    518,368.20/777,552.30 = 488,843.70/x
  3. Step 3: Cross multiply
    518,368.20x = 777,552.30 × 488,843.70
  4. Step 4: Simplify right side
    518,368.20x = 380,101,543,275.51
  5. Step 5: Solve for x
    x = 380,101,543,275.51/518,368.20
  6. Step 6: Final answer
    x = 733,265.55

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Similar ratio
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1.5x scale

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.