Home / 723,545.90-998,496.04-401,285.78

Finding the Fourth Proportional to 723,545.90, 998,496.04 and 401,285.78

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Solution

The fourth proportional to 723,545.90, 998,496.04 and 401,285.78 is: 553,775.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,545.90 : 998,496.04 = 401,285.78 : x
  2. Step 2: Convert to fraction form
    723,545.90/998,496.04 = 401,285.78/x
  3. Step 3: Cross multiply
    723,545.90x = 998,496.04 × 401,285.78
  4. Step 4: Simplify right side
    723,545.90x = 400,682,262,238.31
  5. Step 5: Solve for x
    x = 400,682,262,238.31/723,545.90
  6. Step 6: Final answer
    x = 553,775.87

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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.