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Finding the Fourth Proportional to 499,931.44, 689,902.59 and 270,488.14

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Solution

The fourth proportional to 499,931.44, 689,902.59 and 270,488.14 is: 373,272.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,931.44 : 689,902.59 = 270,488.14 : x
  2. Step 2: Convert to fraction form
    499,931.44/689,902.59 = 270,488.14/x
  3. Step 3: Cross multiply
    499,931.44x = 689,902.59 × 270,488.14
  4. Step 4: Simplify right side
    499,931.44x = 186,610,468,350.28
  5. Step 5: Solve for x
    x = 186,610,468,350.28/499,931.44
  6. Step 6: Final answer
    x = 373,272.12

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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.