Home / 710,913.85-981,067.65-404,985.70

Finding the Fourth Proportional to 710,913.85, 981,067.65 and 404,985.70

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Solution

The fourth proportional to 710,913.85, 981,067.65 and 404,985.70 is: 558,883.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,913.85 : 981,067.65 = 404,985.70 : x
  2. Step 2: Convert to fraction form
    710,913.85/981,067.65 = 404,985.70/x
  3. Step 3: Cross multiply
    710,913.85x = 981,067.65 × 404,985.70
  4. Step 4: Simplify right side
    710,913.85x = 397,318,368,982.61
  5. Step 5: Solve for x
    x = 397,318,368,982.61/710,913.85
  6. Step 6: Final answer
    x = 558,883.99

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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.