Home / 1,188,820.89-1,640,572.65-679,534.20

Finding the Fourth Proportional to 1,188,820.89, 1,640,572.65 and 679,534.20

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Solution

The fourth proportional to 1,188,820.89, 1,640,572.65 and 679,534.20 is: 937,757.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,820.89 : 1,640,572.65 = 679,534.20 : x
  2. Step 2: Convert to fraction form
    1,188,820.89/1,640,572.65 = 679,534.20/x
  3. Step 3: Cross multiply
    1,188,820.89x = 1,640,572.65 × 679,534.20
  4. Step 4: Simplify right side
    1,188,820.89x = 1,114,825,223,259.63
  5. Step 5: Solve for x
    x = 1,114,825,223,259.63/1,188,820.89
  6. Step 6: Final answer
    x = 937,757.09

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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.