Home / 723,265.52-998,165.40-401,076.56

Finding the Fourth Proportional to 723,265.52, 998,165.40 and 401,076.56

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Solution

The fourth proportional to 723,265.52, 998,165.40 and 401,076.56 is: 553,518.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,265.52 : 998,165.40 = 401,076.56 : x
  2. Step 2: Convert to fraction form
    723,265.52/998,165.40 = 401,076.56/x
  3. Step 3: Cross multiply
    723,265.52x = 998,165.40 × 401,076.56
  4. Step 4: Simplify right side
    723,265.52x = 400,340,744,943.02
  5. Step 5: Solve for x
    x = 400,340,744,943.02/723,265.52
  6. Step 6: Final answer
    x = 553,518.36

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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.