Home / 1,102,759.20-1,654,138.80-392,810.40

Finding the Fourth Proportional to 1,102,759.20, 1,654,138.80 and 392,810.40

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Solution

The fourth proportional to 1,102,759.20, 1,654,138.80 and 392,810.40 is: 589,215.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,759.20 : 1,654,138.80 = 392,810.40 : x
  2. Step 2: Convert to fraction form
    1,102,759.20/1,654,138.80 = 392,810.40/x
  3. Step 3: Cross multiply
    1,102,759.20x = 1,654,138.80 × 392,810.40
  4. Step 4: Simplify right side
    1,102,759.20x = 649,762,923,683.52
  5. Step 5: Solve for x
    x = 649,762,923,683.52/1,102,759.20
  6. Step 6: Final answer
    x = 589,215.60

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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.