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Finding the Fourth Proportional to 662,945.04, 914,870.16 and 361,139.04

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Solution

The fourth proportional to 662,945.04, 914,870.16 and 361,139.04 is: 498,375.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,945.04 : 914,870.16 = 361,139.04 : x
  2. Step 2: Convert to fraction form
    662,945.04/914,870.16 = 361,139.04/x
  3. Step 3: Cross multiply
    662,945.04x = 914,870.16 × 361,139.04
  4. Step 4: Simplify right side
    662,945.04x = 330,395,331,307.05
  5. Step 5: Solve for x
    x = 330,395,331,307.05/662,945.04
  6. Step 6: Final answer
    x = 498,375.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.