Home / 723,985.20-1,085,972.40-218,545.20

Finding the Fourth Proportional to 723,985.20, 1,085,972.40 and 218,545.20

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Solution

The fourth proportional to 723,985.20, 1,085,972.40 and 218,545.20 is: 327,816.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,985.20 : 1,085,972.40 = 218,545.20 : x
  2. Step 2: Convert to fraction form
    723,985.20/1,085,972.40 = 218,545.20/x
  3. Step 3: Cross multiply
    723,985.20x = 1,085,972.40 × 218,545.20
  4. Step 4: Simplify right side
    723,985.20x = 237,334,055,352.48
  5. Step 5: Solve for x
    x = 237,334,055,352.48/723,985.20
  6. Step 6: Final answer
    x = 327,816.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.