Home / 759,711.11-1,139,060.46-418,315.30

Finding the Fourth Proportional to 759,711.11, 1,139,060.46 and 418,315.30

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Solution

The fourth proportional to 759,711.11, 1,139,060.46 and 418,315.30 is: 627,194.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,711.11 : 1,139,060.46 = 418,315.30 : x
  2. Step 2: Convert to fraction form
    759,711.11/1,139,060.46 = 418,315.30/x
  3. Step 3: Cross multiply
    759,711.11x = 1,139,060.46 × 418,315.30
  4. Step 4: Simplify right side
    759,711.11x = 476,486,410,256.16
  5. Step 5: Solve for x
    x = 476,486,410,256.16/759,711.11
  6. Step 6: Final answer
    x = 627,194.22

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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.