Home / 1,253,138.16-1,729,332.42-680,178.46

Finding the Fourth Proportional to 1,253,138.16, 1,729,332.42 and 680,178.46

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Solution

The fourth proportional to 1,253,138.16, 1,729,332.42 and 680,178.46 is: 938,647.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,138.16 : 1,729,332.42 = 680,178.46 : x
  2. Step 2: Convert to fraction form
    1,253,138.16/1,729,332.42 = 680,178.46/x
  3. Step 3: Cross multiply
    1,253,138.16x = 1,729,332.42 × 680,178.46
  4. Step 4: Simplify right side
    1,253,138.16x = 1,176,254,662,263.67
  5. Step 5: Solve for x
    x = 1,176,254,662,263.67/1,253,138.16
  6. Step 6: Final answer
    x = 938,647.23

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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.