Home / 689,639.47-1,034,934.87-240,364.06

Finding the Fourth Proportional to 689,639.47, 1,034,934.87 and 240,364.06

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Solution

The fourth proportional to 689,639.47, 1,034,934.87 and 240,364.06 is: 360,711.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,639.47 : 1,034,934.87 = 240,364.06 : x
  2. Step 2: Convert to fraction form
    689,639.47/1,034,934.87 = 240,364.06/x
  3. Step 3: Cross multiply
    689,639.47x = 1,034,934.87 × 240,364.06
  4. Step 4: Simplify right side
    689,639.47x = 248,761,145,502.80
  5. Step 5: Solve for x
    x = 248,761,145,502.80/689,639.47
  6. Step 6: Final answer
    x = 360,711.88

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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.