Home / 879,760.80-1,319,641.20-564,832.80

Finding the Fourth Proportional to 879,760.80, 1,319,641.20 and 564,832.80

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Solution

The fourth proportional to 879,760.80, 1,319,641.20 and 564,832.80 is: 847,249.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,760.80 : 1,319,641.20 = 564,832.80 : x
  2. Step 2: Convert to fraction form
    879,760.80/1,319,641.20 = 564,832.80/x
  3. Step 3: Cross multiply
    879,760.80x = 1,319,641.20 × 564,832.80
  4. Step 4: Simplify right side
    879,760.80x = 745,376,633,991.36
  5. Step 5: Solve for x
    x = 745,376,633,991.36/879,760.80
  6. Step 6: Final answer
    x = 847,249.20

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Double scale
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Similar ratio
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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.