Home / 724,805.87-1,000,245.65-402,546.15

Finding the Fourth Proportional to 724,805.87, 1,000,245.65 and 402,546.15

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Solution

The fourth proportional to 724,805.87, 1,000,245.65 and 402,546.15 is: 555,521.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,805.87 : 1,000,245.65 = 402,546.15 : x
  2. Step 2: Convert to fraction form
    724,805.87/1,000,245.65 = 402,546.15/x
  3. Step 3: Cross multiply
    724,805.87x = 1,000,245.65 × 402,546.15
  4. Step 4: Simplify right side
    724,805.87x = 402,645,033,449.02
  5. Step 5: Solve for x
    x = 402,645,033,449.02/724,805.87
  6. Step 6: Final answer
    x = 555,521.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.