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Finding the Fourth Proportional to 499,772.54, 689,686.17 and 270,329.72

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Solution

The fourth proportional to 499,772.54, 689,686.17 and 270,329.72 is: 373,055.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,772.54 : 689,686.17 = 270,329.72 : x
  2. Step 2: Convert to fraction form
    499,772.54/689,686.17 = 270,329.72/x
  3. Step 3: Cross multiply
    499,772.54x = 689,686.17 × 270,329.72
  4. Step 4: Simplify right side
    499,772.54x = 186,442,665,775.54
  5. Step 5: Solve for x
    x = 186,442,665,775.54/499,772.54
  6. Step 6: Final answer
    x = 373,055.05

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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.