Home / 668,545.80-1,001,943.90-268,859.40

Finding the Fourth Proportional to 668,545.80, 1,001,943.90 and 268,859.40

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Solution

The fourth proportional to 668,545.80, 1,001,943.90 and 268,859.40 is: 402,937.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,545.80 : 1,001,943.90 = 268,859.40 : x
  2. Step 2: Convert to fraction form
    668,545.80/1,001,943.90 = 268,859.40/x
  3. Step 3: Cross multiply
    668,545.80x = 1,001,943.90 × 268,859.40
  4. Step 4: Simplify right side
    668,545.80x = 269,382,035,787.66
  5. Step 5: Solve for x
    x = 269,382,035,787.66/668,545.80
  6. Step 6: Final answer
    x = 402,937.29

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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.