Home / 918,808.76-1,268,026.90-551,299.60

Finding the Fourth Proportional to 918,808.76, 1,268,026.90 and 551,299.60

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Solution

The fourth proportional to 918,808.76, 1,268,026.90 and 551,299.60 is: 760,835.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,808.76 : 1,268,026.90 = 551,299.60 : x
  2. Step 2: Convert to fraction form
    918,808.76/1,268,026.90 = 551,299.60/x
  3. Step 3: Cross multiply
    918,808.76x = 1,268,026.90 × 551,299.60
  4. Step 4: Simplify right side
    918,808.76x = 699,062,722,759.24
  5. Step 5: Solve for x
    x = 699,062,722,759.24/918,808.76
  6. Step 6: Final answer
    x = 760,835.94

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.