Home / 1,259,432.80-1,889,149.20-692,562.40

Finding the Fourth Proportional to 1,259,432.80, 1,889,149.20 and 692,562.40

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Solution

The fourth proportional to 1,259,432.80, 1,889,149.20 and 692,562.40 is: 1,038,843.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,432.80 : 1,889,149.20 = 692,562.40 : x
  2. Step 2: Convert to fraction form
    1,259,432.80/1,889,149.20 = 692,562.40/x
  3. Step 3: Cross multiply
    1,259,432.80x = 1,889,149.20 × 692,562.40
  4. Step 4: Simplify right side
    1,259,432.80x = 1,308,353,703,910.08
  5. Step 5: Solve for x
    x = 1,308,353,703,910.08/1,259,432.80
  6. Step 6: Final answer
    x = 1,038,843.60

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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.