Home / 723,227.40-998,112.78-401,038.56

Finding the Fourth Proportional to 723,227.40, 998,112.78 and 401,038.56

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Solution

The fourth proportional to 723,227.40, 998,112.78 and 401,038.56 is: 553,465.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,227.40 : 998,112.78 = 401,038.56 : x
  2. Step 2: Convert to fraction form
    723,227.40/998,112.78 = 401,038.56/x
  3. Step 3: Cross multiply
    723,227.40x = 998,112.78 × 401,038.56
  4. Step 4: Simplify right side
    723,227.40x = 400,281,712,008.80
  5. Step 5: Solve for x
    x = 400,281,712,008.80/723,227.40
  6. Step 6: Final answer
    x = 553,465.91

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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.