Home / 1,878,123.76-2,817,234.16-511,908.70

Finding the Fourth Proportional to 1,878,123.76, 2,817,234.16 and 511,908.70

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Solution

The fourth proportional to 1,878,123.76, 2,817,234.16 and 511,908.70 is: 767,876.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,878,123.76 : 2,817,234.16 = 511,908.70 : x
  2. Step 2: Convert to fraction form
    1,878,123.76/2,817,234.16 = 511,908.70/x
  3. Step 3: Cross multiply
    1,878,123.76x = 2,817,234.16 × 511,908.70
  4. Step 4: Simplify right side
    1,878,123.76x = 1,442,166,676,441.19
  5. Step 5: Solve for x
    x = 1,442,166,676,441.19/1,878,123.76
  6. Step 6: Final answer
    x = 767,876.27

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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.