Home / 753,180.68-1,039,385.32-409,013.60

Finding the Fourth Proportional to 753,180.68, 1,039,385.32 and 409,013.60

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Solution

The fourth proportional to 753,180.68, 1,039,385.32 and 409,013.60 is: 564,436.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,180.68 : 1,039,385.32 = 409,013.60 : x
  2. Step 2: Convert to fraction form
    753,180.68/1,039,385.32 = 409,013.60/x
  3. Step 3: Cross multiply
    753,180.68x = 1,039,385.32 × 409,013.60
  4. Step 4: Simplify right side
    753,180.68x = 425,122,731,520.35
  5. Step 5: Solve for x
    x = 425,122,731,520.35/753,180.68
  6. Step 6: Final answer
    x = 564,436.59

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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.