Home / 1,786,215.61-2,679,410.94-721,124.74

Finding the Fourth Proportional to 1,786,215.61, 2,679,410.94 and 721,124.74

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Solution

The fourth proportional to 1,786,215.61, 2,679,410.94 and 721,124.74 is: 1,081,722.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786,215.61 : 2,679,410.94 = 721,124.74 : x
  2. Step 2: Convert to fraction form
    1,786,215.61/2,679,410.94 = 721,124.74/x
  3. Step 3: Cross multiply
    1,786,215.61x = 2,679,410.94 × 721,124.74
  4. Step 4: Simplify right side
    1,786,215.61x = 1,932,189,517,460.66
  5. Step 5: Solve for x
    x = 1,932,189,517,460.66/1,786,215.61
  6. Step 6: Final answer
    x = 1,081,722.45

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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.