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Finding the Fourth Proportional to 499,862.34, 689,807.24 and 270,419.01

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Solution

The fourth proportional to 499,862.34, 689,807.24 and 270,419.01 is: 373,176.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,862.34 : 689,807.24 = 270,419.01 : x
  2. Step 2: Convert to fraction form
    499,862.34/689,807.24 = 270,419.01/x
  3. Step 3: Cross multiply
    499,862.34x = 689,807.24 × 270,419.01
  4. Step 4: Simplify right side
    499,862.34x = 186,536,988,006.83
  5. Step 5: Solve for x
    x = 186,536,988,006.83/499,862.34
  6. Step 6: Final answer
    x = 373,176.72

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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.