Home / 712,945.40-1,068,554.10-412,849.40

Finding the Fourth Proportional to 712,945.40, 1,068,554.10 and 412,849.40

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Solution

The fourth proportional to 712,945.40, 1,068,554.10 and 412,849.40 is: 618,773.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,945.40 : 1,068,554.10 = 412,849.40 : x
  2. Step 2: Convert to fraction form
    712,945.40/1,068,554.10 = 412,849.40/x
  3. Step 3: Cross multiply
    712,945.40x = 1,068,554.10 × 412,849.40
  4. Step 4: Simplify right side
    712,945.40x = 441,151,919,052.54
  5. Step 5: Solve for x
    x = 441,151,919,052.54/712,945.40
  6. Step 6: Final answer
    x = 618,773.78

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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.