Home / 724,913.91-1,000,353.38-402,644.57

Finding the Fourth Proportional to 724,913.91, 1,000,353.38 and 402,644.57

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Solution

The fourth proportional to 724,913.91, 1,000,353.38 and 402,644.57 is: 555,634.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,913.91 : 1,000,353.38 = 402,644.57 : x
  2. Step 2: Convert to fraction form
    724,913.91/1,000,353.38 = 402,644.57/x
  3. Step 3: Cross multiply
    724,913.91x = 1,000,353.38 × 402,644.57
  4. Step 4: Simplify right side
    724,913.91x = 402,786,849,523.16
  5. Step 5: Solve for x
    x = 402,786,849,523.16/724,913.91
  6. Step 6: Final answer
    x = 555,634.05

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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.