Home / 759,724.38-1,139,080.35-418,328.61

Finding the Fourth Proportional to 759,724.38, 1,139,080.35 and 418,328.61

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Solution

The fourth proportional to 759,724.38, 1,139,080.35 and 418,328.61 is: 627,214.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,724.38 : 1,139,080.35 = 418,328.61 : x
  2. Step 2: Convert to fraction form
    759,724.38/1,139,080.35 = 418,328.61/x
  3. Step 3: Cross multiply
    759,724.38x = 1,139,080.35 × 418,328.61
  4. Step 4: Simplify right side
    759,724.38x = 476,509,899,493.81
  5. Step 5: Solve for x
    x = 476,509,899,493.81/759,724.38
  6. Step 6: Final answer
    x = 627,214.17

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1.5x scale

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.