Home / 1,791,624.40-2,687,436.60-1,287,739.60

Finding the Fourth Proportional to 1,791,624.40, 2,687,436.60 and 1,287,739.60

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Solution

The fourth proportional to 1,791,624.40, 2,687,436.60 and 1,287,739.60 is: 1,931,609.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791,624.40 : 2,687,436.60 = 1,287,739.60 : x
  2. Step 2: Convert to fraction form
    1,791,624.40/2,687,436.60 = 1,287,739.60/x
  3. Step 3: Cross multiply
    1,791,624.40x = 2,687,436.60 × 1,287,739.60
  4. Step 4: Simplify right side
    1,791,624.40x = 3,460,718,532,309.36
  5. Step 5: Solve for x
    x = 3,460,718,532,309.36/1,791,624.40
  6. Step 6: Final answer
    x = 1,931,609.40

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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.