Home / 723,843.24-998,823.12-401,472.60

Finding the Fourth Proportional to 723,843.24, 998,823.12 and 401,472.60

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Solution

The fourth proportional to 723,843.24, 998,823.12 and 401,472.60 is: 553,987.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,843.24 : 998,823.12 = 401,472.60 : x
  2. Step 2: Convert to fraction form
    723,843.24/998,823.12 = 401,472.60/x
  3. Step 3: Cross multiply
    723,843.24x = 998,823.12 × 401,472.60
  4. Step 4: Simplify right side
    723,843.24x = 401,000,114,926.51
  5. Step 5: Solve for x
    x = 401,000,114,926.51/723,843.24
  6. Step 6: Final answer
    x = 553,987.51

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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.