Home / 858,744.10-1,288,116.15-433,591.30

Finding the Fourth Proportional to 858,744.10, 1,288,116.15 and 433,591.30

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Solution

The fourth proportional to 858,744.10, 1,288,116.15 and 433,591.30 is: 650,386.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,744.10 : 1,288,116.15 = 433,591.30 : x
  2. Step 2: Convert to fraction form
    858,744.10/1,288,116.15 = 433,591.30/x
  3. Step 3: Cross multiply
    858,744.10x = 1,288,116.15 × 433,591.30
  4. Step 4: Simplify right side
    858,744.10x = 558,515,956,029.50
  5. Step 5: Solve for x
    x = 558,515,956,029.50/858,744.10
  6. Step 6: Final answer
    x = 650,386.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.