Home / 1,125,328.78-1,687,144.20-366,717.25

Finding the Fourth Proportional to 1,125,328.78, 1,687,144.20 and 366,717.25

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Solution

The fourth proportional to 1,125,328.78, 1,687,144.20 and 366,717.25 is: 549,799.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,328.78 : 1,687,144.20 = 366,717.25 : x
  2. Step 2: Convert to fraction form
    1,125,328.78/1,687,144.20 = 366,717.25/x
  3. Step 3: Cross multiply
    1,125,328.78x = 1,687,144.20 × 366,717.25
  4. Step 4: Simplify right side
    1,125,328.78x = 618,704,881,377.45
  5. Step 5: Solve for x
    x = 618,704,881,377.45/1,125,328.78
  6. Step 6: Final answer
    x = 549,799.22

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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.