Home / 2,578,701.60-3,868,052.40-781,495.20

Finding the Fourth Proportional to 2,578,701.60, 3,868,052.40 and 781,495.20

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Solution

The fourth proportional to 2,578,701.60, 3,868,052.40 and 781,495.20 is: 1,172,242.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,701.60 : 3,868,052.40 = 781,495.20 : x
  2. Step 2: Convert to fraction form
    2,578,701.60/3,868,052.40 = 781,495.20/x
  3. Step 3: Cross multiply
    2,578,701.60x = 3,868,052.40 × 781,495.20
  4. Step 4: Simplify right side
    2,578,701.60x = 3,022,864,383,948.48
  5. Step 5: Solve for x
    x = 3,022,864,383,948.48/2,578,701.60
  6. Step 6: Final answer
    x = 1,172,242.80

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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.