Home / 828,007.80-1,240,480.80-471,964.20

Finding the Fourth Proportional to 828,007.80, 1,240,480.80 and 471,964.20

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Solution

The fourth proportional to 828,007.80, 1,240,480.80 and 471,964.20 is: 707,073.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,007.80 : 1,240,480.80 = 471,964.20 : x
  2. Step 2: Convert to fraction form
    828,007.80/1,240,480.80 = 471,964.20/x
  3. Step 3: Cross multiply
    828,007.80x = 1,240,480.80 × 471,964.20
  4. Step 4: Simplify right side
    828,007.80x = 585,462,528,387.36
  5. Step 5: Solve for x
    x = 585,462,528,387.36/828,007.80
  6. Step 6: Final answer
    x = 707,073.69

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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.