Home / 889,120.80-1,332,702.72-439,175.52

Finding the Fourth Proportional to 889,120.80, 1,332,702.72 and 439,175.52

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Solution

The fourth proportional to 889,120.80, 1,332,702.72 and 439,175.52 is: 658,279.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,120.80 : 1,332,702.72 = 439,175.52 : x
  2. Step 2: Convert to fraction form
    889,120.80/1,332,702.72 = 439,175.52/x
  3. Step 3: Cross multiply
    889,120.80x = 1,332,702.72 × 439,175.52
  4. Step 4: Simplify right side
    889,120.80x = 585,290,410,061.41
  5. Step 5: Solve for x
    x = 585,290,410,061.41/889,120.80
  6. Step 6: Final answer
    x = 658,279.97

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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.