Home / 1,853,394.60-2,780,351.10-788,428.20

Finding the Fourth Proportional to 1,853,394.60, 2,780,351.10 and 788,428.20

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Solution

The fourth proportional to 1,853,394.60, 2,780,351.10 and 788,428.20 is: 1,182,752.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,853,394.60 : 2,780,351.10 = 788,428.20 : x
  2. Step 2: Convert to fraction form
    1,853,394.60/2,780,351.10 = 788,428.20/x
  3. Step 3: Cross multiply
    1,853,394.60x = 2,780,351.10 × 788,428.20
  4. Step 4: Simplify right side
    1,853,394.60x = 2,192,107,213,141.02
  5. Step 5: Solve for x
    x = 2,192,107,213,141.02/1,853,394.60
  6. Step 6: Final answer
    x = 1,182,752.56

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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.