Home / 3,191,428.80-4,781,894.40-2,656,051.20

Finding the Fourth Proportional to 3,191,428.80, 4,781,894.40 and 2,656,051.20

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Solution

The fourth proportional to 3,191,428.80, 4,781,894.40 and 2,656,051.20 is: 3,979,708.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191,428.80 : 4,781,894.40 = 2,656,051.20 : x
  2. Step 2: Convert to fraction form
    3,191,428.80/4,781,894.40 = 2,656,051.20/x
  3. Step 3: Cross multiply
    3,191,428.80x = 4,781,894.40 × 2,656,051.20
  4. Step 4: Simplify right side
    3,191,428.80x = 12,700,956,359,393.28
  5. Step 5: Solve for x
    x = 12,700,956,359,393.28/3,191,428.80
  6. Step 6: Final answer
    x = 3,979,708.51

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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.