Home / 724,805.74-1,000,245.47-402,546.03

Finding the Fourth Proportional to 724,805.74, 1,000,245.47 and 402,546.03

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Solution

The fourth proportional to 724,805.74, 1,000,245.47 and 402,546.03 is: 555,521.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,805.74 : 1,000,245.47 = 402,546.03 : x
  2. Step 2: Convert to fraction form
    724,805.74/1,000,245.47 = 402,546.03/x
  3. Step 3: Cross multiply
    724,805.74x = 1,000,245.47 × 402,546.03
  4. Step 4: Simplify right side
    724,805.74x = 402,644,838,979.12
  5. Step 5: Solve for x
    x = 402,644,838,979.12/724,805.74
  6. Step 6: Final answer
    x = 555,521.04

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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.