Home / 781,527.74-1,172,127.58-220,431.02

Finding the Fourth Proportional to 781,527.74, 1,172,127.58 and 220,431.02

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Solution

The fourth proportional to 781,527.74, 1,172,127.58 and 220,431.02 is: 330,600.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,527.74 : 1,172,127.58 = 220,431.02 : x
  2. Step 2: Convert to fraction form
    781,527.74/1,172,127.58 = 220,431.02/x
  3. Step 3: Cross multiply
    781,527.74x = 1,172,127.58 × 220,431.02
  4. Step 4: Simplify right side
    781,527.74x = 258,373,278,029.53
  5. Step 5: Solve for x
    x = 258,373,278,029.53/781,527.74
  6. Step 6: Final answer
    x = 330,600.27

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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.