Home / 1,877,781.52-2,815,965.15-679,407.58

Finding the Fourth Proportional to 1,877,781.52, 2,815,965.15 and 679,407.58

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Solution

The fourth proportional to 1,877,781.52, 2,815,965.15 and 679,407.58 is: 1,018,855.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877,781.52 : 2,815,965.15 = 679,407.58 : x
  2. Step 2: Convert to fraction form
    1,877,781.52/2,815,965.15 = 679,407.58/x
  3. Step 3: Cross multiply
    1,877,781.52x = 2,815,965.15 × 679,407.58
  4. Step 4: Simplify right side
    1,877,781.52x = 1,913,188,067,925.84
  5. Step 5: Solve for x
    x = 1,913,188,067,925.84/1,877,781.52
  6. Step 6: Final answer
    x = 1,018,855.52

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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.