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Finding the Fourth Proportional to 710,067.87, 979,900.34 and 404,129.25

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Solution

The fourth proportional to 710,067.87, 979,900.34 and 404,129.25 is: 557,702.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,067.87 : 979,900.34 = 404,129.25 : x
  2. Step 2: Convert to fraction form
    710,067.87/979,900.34 = 404,129.25/x
  3. Step 3: Cross multiply
    710,067.87x = 979,900.34 × 404,129.25
  4. Step 4: Simplify right side
    710,067.87x = 396,006,387,458.30
  5. Step 5: Solve for x
    x = 396,006,387,458.30/710,067.87
  6. Step 6: Final answer
    x = 557,702.16

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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.