Home / 687,866.40-1,031,799.60-182,426.40

Finding the Fourth Proportional to 687,866.40, 1,031,799.60 and 182,426.40

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Solution

The fourth proportional to 687,866.40, 1,031,799.60 and 182,426.40 is: 273,639.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,866.40 : 1,031,799.60 = 182,426.40 : x
  2. Step 2: Convert to fraction form
    687,866.40/1,031,799.60 = 182,426.40/x
  3. Step 3: Cross multiply
    687,866.40x = 1,031,799.60 × 182,426.40
  4. Step 4: Simplify right side
    687,866.40x = 188,227,486,549.44
  5. Step 5: Solve for x
    x = 188,227,486,549.44/687,866.40
  6. Step 6: Final answer
    x = 273,639.60

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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.