Home / 778,840.80-1,168,261.20-424,546.80

Finding the Fourth Proportional to 778,840.80, 1,168,261.20 and 424,546.80

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Solution

The fourth proportional to 778,840.80, 1,168,261.20 and 424,546.80 is: 636,820.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,840.80 : 1,168,261.20 = 424,546.80 : x
  2. Step 2: Convert to fraction form
    778,840.80/1,168,261.20 = 424,546.80/x
  3. Step 3: Cross multiply
    778,840.80x = 1,168,261.20 × 424,546.80
  4. Step 4: Simplify right side
    778,840.80x = 495,981,554,024.16
  5. Step 5: Solve for x
    x = 495,981,554,024.16/778,840.80
  6. Step 6: Final answer
    x = 636,820.20

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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.