Home / 677,579.52-1,016,479.80-278,113.08

Finding the Fourth Proportional to 677,579.52, 1,016,479.80 and 278,113.08

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Solution

The fourth proportional to 677,579.52, 1,016,479.80 and 278,113.08 is: 417,214.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,579.52 : 1,016,479.80 = 278,113.08 : x
  2. Step 2: Convert to fraction form
    677,579.52/1,016,479.80 = 278,113.08/x
  3. Step 3: Cross multiply
    677,579.52x = 1,016,479.80 × 278,113.08
  4. Step 4: Simplify right side
    677,579.52x = 282,696,327,935.78
  5. Step 5: Solve for x
    x = 282,696,327,935.78/677,579.52
  6. Step 6: Final answer
    x = 417,214.98

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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.