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Finding the Fourth Proportional to 499,784.28, 689,700.24 and 270,341.70

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Solution

The fourth proportional to 499,784.28, 689,700.24 and 270,341.70 is: 373,070.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,784.28 : 689,700.24 = 270,341.70 : x
  2. Step 2: Convert to fraction form
    499,784.28/689,700.24 = 270,341.70/x
  3. Step 3: Cross multiply
    499,784.28x = 689,700.24 × 270,341.70
  4. Step 4: Simplify right side
    499,784.28x = 186,454,735,372.01
  5. Step 5: Solve for x
    x = 186,454,735,372.01/499,784.28
  6. Step 6: Final answer
    x = 373,070.43

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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.