Home / 1,020,976.20-1,529,909.10-862,345.80

Finding the Fourth Proportional to 1,020,976.20, 1,529,909.10 and 862,345.80

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Solution

The fourth proportional to 1,020,976.20, 1,529,909.10 and 862,345.80 is: 1,292,205.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,976.20 : 1,529,909.10 = 862,345.80 : x
  2. Step 2: Convert to fraction form
    1,020,976.20/1,529,909.10 = 862,345.80/x
  3. Step 3: Cross multiply
    1,020,976.20x = 1,529,909.10 × 862,345.80
  4. Step 4: Simplify right side
    1,020,976.20x = 1,319,310,686,766.78
  5. Step 5: Solve for x
    x = 1,319,310,686,766.78/1,020,976.20
  6. Step 6: Final answer
    x = 1,292,205.13

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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.