Home / 758,705.46-1,138,619.61-359,347.20

Finding the Fourth Proportional to 758,705.46, 1,138,619.61 and 359,347.20

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Solution

The fourth proportional to 758,705.46, 1,138,619.61 and 359,347.20 is: 539,286.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,705.46 : 1,138,619.61 = 359,347.20 : x
  2. Step 2: Convert to fraction form
    758,705.46/1,138,619.61 = 359,347.20/x
  3. Step 3: Cross multiply
    758,705.46x = 1,138,619.61 × 359,347.20
  4. Step 4: Simplify right side
    758,705.46x = 409,159,768,718.59
  5. Step 5: Solve for x
    x = 409,159,768,718.59/758,705.46
  6. Step 6: Final answer
    x = 539,286.71

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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.