Home / 1,818,698.65-2,509,864.76-991,817.48

Finding the Fourth Proportional to 1,818,698.65, 2,509,864.76 and 991,817.48

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Solution

The fourth proportional to 1,818,698.65, 2,509,864.76 and 991,817.48 is: 1,368,741.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818,698.65 : 2,509,864.76 = 991,817.48 : x
  2. Step 2: Convert to fraction form
    1,818,698.65/2,509,864.76 = 991,817.48/x
  3. Step 3: Cross multiply
    1,818,698.65x = 2,509,864.76 × 991,817.48
  4. Step 4: Simplify right side
    1,818,698.65x = 2,489,327,741,404.00
  5. Step 5: Solve for x
    x = 2,489,327,741,404.00/1,818,698.65
  6. Step 6: Final answer
    x = 1,368,741.18

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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.