Home / 678,265.19-1,016,067.59-393,357.19

Finding the Fourth Proportional to 678,265.19, 1,016,067.59 and 393,357.19

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Solution

The fourth proportional to 678,265.19, 1,016,067.59 and 393,357.19 is: 589,264.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,265.19 : 1,016,067.59 = 393,357.19 : x
  2. Step 2: Convert to fraction form
    678,265.19/1,016,067.59 = 393,357.19/x
  3. Step 3: Cross multiply
    678,265.19x = 1,016,067.59 × 393,357.19
  4. Step 4: Simplify right side
    678,265.19x = 399,677,490,280.68
  5. Step 5: Solve for x
    x = 399,677,490,280.68/678,265.19
  6. Step 6: Final answer
    x = 589,264.34

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1.5x scale

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.