Home / 705,877.30-1,058,815.95-407,278.90

Finding the Fourth Proportional to 705,877.30, 1,058,815.95 and 407,278.90

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Solution

The fourth proportional to 705,877.30, 1,058,815.95 and 407,278.90 is: 610,918.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,877.30 : 1,058,815.95 = 407,278.90 : x
  2. Step 2: Convert to fraction form
    705,877.30/1,058,815.95 = 407,278.90/x
  3. Step 3: Cross multiply
    705,877.30x = 1,058,815.95 × 407,278.90
  4. Step 4: Simplify right side
    705,877.30x = 431,233,395,418.46
  5. Step 5: Solve for x
    x = 431,233,395,418.46/705,877.30
  6. Step 6: Final answer
    x = 610,918.35

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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.