Home / 723,432.24-998,387.64-401,173.20

Finding the Fourth Proportional to 723,432.24, 998,387.64 and 401,173.20

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Solution

The fourth proportional to 723,432.24, 998,387.64 and 401,173.20 is: 553,647.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,432.24 : 998,387.64 = 401,173.20 : x
  2. Step 2: Convert to fraction form
    723,432.24/998,387.64 = 401,173.20/x
  3. Step 3: Cross multiply
    723,432.24x = 998,387.64 × 401,173.20
  4. Step 4: Simplify right side
    723,432.24x = 400,526,364,379.25
  5. Step 5: Solve for x
    x = 400,526,364,379.25/723,432.24
  6. Step 6: Final answer
    x = 553,647.38

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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.