Home / 724,869.76-1,000,286.72-402,600.96

Finding the Fourth Proportional to 724,869.76, 1,000,286.72 and 402,600.96

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Solution

The fourth proportional to 724,869.76, 1,000,286.72 and 402,600.96 is: 555,570.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,869.76 : 1,000,286.72 = 402,600.96 : x
  2. Step 2: Convert to fraction form
    724,869.76/1,000,286.72 = 402,600.96/x
  3. Step 3: Cross multiply
    724,869.76x = 1,000,286.72 × 402,600.96
  4. Step 4: Simplify right side
    724,869.76x = 402,716,393,747.25
  5. Step 5: Solve for x
    x = 402,716,393,747.25/724,869.76
  6. Step 6: Final answer
    x = 555,570.69

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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.