Home / 871,209.78-1,306,880.28-240,118.13

Finding the Fourth Proportional to 871,209.78, 1,306,880.28 and 240,118.13

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Solution

The fourth proportional to 871,209.78, 1,306,880.28 and 240,118.13 is: 360,195.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,209.78 : 1,306,880.28 = 240,118.13 : x
  2. Step 2: Convert to fraction form
    871,209.78/1,306,880.28 = 240,118.13/x
  3. Step 3: Cross multiply
    871,209.78x = 1,306,880.28 × 240,118.13
  4. Step 4: Simplify right side
    871,209.78x = 313,805,648,967.48
  5. Step 5: Solve for x
    x = 313,805,648,967.48/871,209.78
  6. Step 6: Final answer
    x = 360,195.28

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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.