Home / 869,126.80-1,303,690.20-752,486.80

Finding the Fourth Proportional to 869,126.80, 1,303,690.20 and 752,486.80

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Solution

The fourth proportional to 869,126.80, 1,303,690.20 and 752,486.80 is: 1,128,730.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,126.80 : 1,303,690.20 = 752,486.80 : x
  2. Step 2: Convert to fraction form
    869,126.80/1,303,690.20 = 752,486.80/x
  3. Step 3: Cross multiply
    869,126.80x = 1,303,690.20 × 752,486.80
  4. Step 4: Simplify right side
    869,126.80x = 981,009,666,789.36
  5. Step 5: Solve for x
    x = 981,009,666,789.36/869,126.80
  6. Step 6: Final answer
    x = 1,128,730.20

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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.