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Finding the Fourth Proportional to 511,246.60, 766,869.90 and 449,038.60

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Solution

The fourth proportional to 511,246.60, 766,869.90 and 449,038.60 is: 673,557.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,246.60 : 766,869.90 = 449,038.60 : x
  2. Step 2: Convert to fraction form
    511,246.60/766,869.90 = 449,038.60/x
  3. Step 3: Cross multiply
    511,246.60x = 766,869.90 × 449,038.60
  4. Step 4: Simplify right side
    511,246.60x = 344,354,186,278.14
  5. Step 5: Solve for x
    x = 344,354,186,278.14/511,246.60
  6. Step 6: Final answer
    x = 673,557.90

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1.5x scale

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.