Home / 1,853,780.40-2,781,707.40-788,641.20

Finding the Fourth Proportional to 1,853,780.40, 2,781,707.40 and 788,641.20

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Solution

The fourth proportional to 1,853,780.40, 2,781,707.40 and 788,641.20 is: 1,183,402.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,853,780.40 : 2,781,707.40 = 788,641.20 : x
  2. Step 2: Convert to fraction form
    1,853,780.40/2,781,707.40 = 788,641.20/x
  3. Step 3: Cross multiply
    1,853,780.40x = 2,781,707.40 × 788,641.20
  4. Step 4: Simplify right side
    1,853,780.40x = 2,193,769,061,984.88
  5. Step 5: Solve for x
    x = 2,193,769,061,984.88/1,853,780.40
  6. Step 6: Final answer
    x = 1,183,402.88

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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.