Home / 1,878,117.25-2,817,224.39-511,902.15

Finding the Fourth Proportional to 1,878,117.25, 2,817,224.39 and 511,902.15

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Solution

The fourth proportional to 1,878,117.25, 2,817,224.39 and 511,902.15 is: 767,866.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,878,117.25 : 2,817,224.39 = 511,902.15 : x
  2. Step 2: Convert to fraction form
    1,878,117.25/2,817,224.39 = 511,902.15/x
  3. Step 3: Cross multiply
    1,878,117.25x = 2,817,224.39 × 511,902.15
  4. Step 4: Simplify right side
    1,878,117.25x = 1,442,143,219,713.93
  5. Step 5: Solve for x
    x = 1,442,143,219,713.93/1,878,117.25
  6. Step 6: Final answer
    x = 767,866.45

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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.