Home / 916,729.52-1,265,067.68-508,807.44

Finding the Fourth Proportional to 916,729.52, 1,265,067.68 and 508,807.44

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Solution

The fourth proportional to 916,729.52, 1,265,067.68 and 508,807.44 is: 702,143.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,729.52 : 1,265,067.68 = 508,807.44 : x
  2. Step 2: Convert to fraction form
    916,729.52/1,265,067.68 = 508,807.44/x
  3. Step 3: Cross multiply
    916,729.52x = 1,265,067.68 × 508,807.44
  4. Step 4: Simplify right side
    916,729.52x = 643,675,847,687.54
  5. Step 5: Solve for x
    x = 643,675,847,687.54/916,729.52
  6. Step 6: Final answer
    x = 702,143.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.