Home / 1,310,667.10-1,966,000.65-511,974.70

Finding the Fourth Proportional to 1,310,667.10, 1,966,000.65 and 511,974.70

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Solution

The fourth proportional to 1,310,667.10, 1,966,000.65 and 511,974.70 is: 767,962.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,667.10 : 1,966,000.65 = 511,974.70 : x
  2. Step 2: Convert to fraction form
    1,310,667.10/1,966,000.65 = 511,974.70/x
  3. Step 3: Cross multiply
    1,310,667.10x = 1,966,000.65 × 511,974.70
  4. Step 4: Simplify right side
    1,310,667.10x = 1,006,542,592,983.56
  5. Step 5: Solve for x
    x = 1,006,542,592,983.56/1,310,667.10
  6. Step 6: Final answer
    x = 767,962.05

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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.