Home / 486,140.60-670,604.46-284,897.72

Finding the Fourth Proportional to 486,140.60, 670,604.46 and 284,897.72

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Solution

The fourth proportional to 486,140.60, 670,604.46 and 284,897.72 is: 393,000.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,140.60 : 670,604.46 = 284,897.72 : x
  2. Step 2: Convert to fraction form
    486,140.60/670,604.46 = 284,897.72/x
  3. Step 3: Cross multiply
    486,140.60x = 670,604.46 × 284,897.72
  4. Step 4: Simplify right side
    486,140.60x = 191,053,681,675.83
  5. Step 5: Solve for x
    x = 191,053,681,675.83/486,140.60
  6. Step 6: Final answer
    x = 393,000.88

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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.