Home / 687,870.40-1,031,805.60-182,430.40

Finding the Fourth Proportional to 687,870.40, 1,031,805.60 and 182,430.40

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Solution

The fourth proportional to 687,870.40, 1,031,805.60 and 182,430.40 is: 273,645.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,870.40 : 1,031,805.60 = 182,430.40 : x
  2. Step 2: Convert to fraction form
    687,870.40/1,031,805.60 = 182,430.40/x
  3. Step 3: Cross multiply
    687,870.40x = 1,031,805.60 × 182,430.40
  4. Step 4: Simplify right side
    687,870.40x = 188,232,708,330.24
  5. Step 5: Solve for x
    x = 188,232,708,330.24/687,870.40
  6. Step 6: Final answer
    x = 273,645.60

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Similar ratio
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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.