Home / 723,618.73-998,655.18-401,432.63

Finding the Fourth Proportional to 723,618.73, 998,655.18 and 401,432.63

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Solution

The fourth proportional to 723,618.73, 998,655.18 and 401,432.63 is: 554,011.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,618.73 : 998,655.18 = 401,432.63 : x
  2. Step 2: Convert to fraction form
    723,618.73/998,655.18 = 401,432.63/x
  3. Step 3: Cross multiply
    723,618.73x = 998,655.18 × 401,432.63
  4. Step 4: Simplify right side
    723,618.73x = 400,892,768,871.88
  5. Step 5: Solve for x
    x = 400,892,768,871.88/723,618.73
  6. Step 6: Final answer
    x = 554,011.04

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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.