Home / 1,878,123.35-2,817,233.55-511,908.29

Finding the Fourth Proportional to 1,878,123.35, 2,817,233.55 and 511,908.29

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Solution

The fourth proportional to 1,878,123.35, 2,817,233.55 and 511,908.29 is: 767,875.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,878,123.35 : 2,817,233.55 = 511,908.29 : x
  2. Step 2: Convert to fraction form
    1,878,123.35/2,817,233.55 = 511,908.29/x
  3. Step 3: Cross multiply
    1,878,123.35x = 2,817,233.55 × 511,908.29
  4. Step 4: Simplify right side
    1,878,123.35x = 1,442,165,209,111.13
  5. Step 5: Solve for x
    x = 1,442,165,209,111.13/1,878,123.35
  6. Step 6: Final answer
    x = 767,875.66

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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.