Home / 666,947.40-1,001,077.20-330,368.10

Finding the Fourth Proportional to 666,947.40, 1,001,077.20 and 330,368.10

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Solution

The fourth proportional to 666,947.40, 1,001,077.20 and 330,368.10 is: 495,877.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,947.40 : 1,001,077.20 = 330,368.10 : x
  2. Step 2: Convert to fraction form
    666,947.40/1,001,077.20 = 330,368.10/x
  3. Step 3: Cross multiply
    666,947.40x = 1,001,077.20 × 330,368.10
  4. Step 4: Simplify right side
    666,947.40x = 330,723,972,517.32
  5. Step 5: Solve for x
    x = 330,723,972,517.32/666,947.40
  6. Step 6: Final answer
    x = 495,877.14

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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.