Home / 842,590.80-1,263,886.20-807,598.80

Finding the Fourth Proportional to 842,590.80, 1,263,886.20 and 807,598.80

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Solution

The fourth proportional to 842,590.80, 1,263,886.20 and 807,598.80 is: 1,211,398.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,590.80 : 1,263,886.20 = 807,598.80 : x
  2. Step 2: Convert to fraction form
    842,590.80/1,263,886.20 = 807,598.80/x
  3. Step 3: Cross multiply
    842,590.80x = 1,263,886.20 × 807,598.80
  4. Step 4: Simplify right side
    842,590.80x = 1,020,712,978,456.56
  5. Step 5: Solve for x
    x = 1,020,712,978,456.56/842,590.80
  6. Step 6: Final answer
    x = 1,211,398.20

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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.