Home / 2,807,287.20-4,210,930.80-1,387,049.40

Finding the Fourth Proportional to 2,807,287.20, 4,210,930.80 and 1,387,049.40

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Solution

The fourth proportional to 2,807,287.20, 4,210,930.80 and 1,387,049.40 is: 2,080,574.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,807,287.20 : 4,210,930.80 = 1,387,049.40 : x
  2. Step 2: Convert to fraction form
    2,807,287.20/4,210,930.80 = 1,387,049.40/x
  3. Step 3: Cross multiply
    2,807,287.20x = 4,210,930.80 × 1,387,049.40
  4. Step 4: Simplify right side
    2,807,287.20x = 5,840,769,039,581.52
  5. Step 5: Solve for x
    x = 5,840,769,039,581.52/2,807,287.20
  6. Step 6: Final answer
    x = 2,080,574.10

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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.