Home / 705,630.80-1,058,446.20-425,694.80

Finding the Fourth Proportional to 705,630.80, 1,058,446.20 and 425,694.80

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Solution

The fourth proportional to 705,630.80, 1,058,446.20 and 425,694.80 is: 638,542.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,630.80 : 1,058,446.20 = 425,694.80 : x
  2. Step 2: Convert to fraction form
    705,630.80/1,058,446.20 = 425,694.80/x
  3. Step 3: Cross multiply
    705,630.80x = 1,058,446.20 × 425,694.80
  4. Step 4: Simplify right side
    705,630.80x = 450,575,043,419.76
  5. Step 5: Solve for x
    x = 450,575,043,419.76/705,630.80
  6. Step 6: Final answer
    x = 638,542.20

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1.5x scale

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.