Home / 3,120,209.60-4,679,968.80-876,574.40

Finding the Fourth Proportional to 3,120,209.60, 4,679,968.80 and 876,574.40

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Solution

The fourth proportional to 3,120,209.60, 4,679,968.80 and 876,574.40 is: 1,314,764.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,209.60 : 4,679,968.80 = 876,574.40 : x
  2. Step 2: Convert to fraction form
    3,120,209.60/4,679,968.80 = 876,574.40/x
  3. Step 3: Cross multiply
    3,120,209.60x = 4,679,968.80 × 876,574.40
  4. Step 4: Simplify right side
    3,120,209.60x = 4,102,340,842,878.72
  5. Step 5: Solve for x
    x = 4,102,340,842,878.72/3,120,209.60
  6. Step 6: Final answer
    x = 1,314,764.51

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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.