Home / 805,964.80-1,208,947.20-770,535.40

Finding the Fourth Proportional to 805,964.80, 1,208,947.20 and 770,535.40

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Solution

The fourth proportional to 805,964.80, 1,208,947.20 and 770,535.40 is: 1,155,803.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,964.80 : 1,208,947.20 = 770,535.40 : x
  2. Step 2: Convert to fraction form
    805,964.80/1,208,947.20 = 770,535.40/x
  3. Step 3: Cross multiply
    805,964.80x = 1,208,947.20 × 770,535.40
  4. Step 4: Simplify right side
    805,964.80x = 931,536,614,330.88
  5. Step 5: Solve for x
    x = 931,536,614,330.88/805,964.80
  6. Step 6: Final answer
    x = 1,155,803.10

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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.