Home / 1,065,719.80-1,598,579.70-768,287.80

Finding the Fourth Proportional to 1,065,719.80, 1,598,579.70 and 768,287.80

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Solution

The fourth proportional to 1,065,719.80, 1,598,579.70 and 768,287.80 is: 1,152,431.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065,719.80 : 1,598,579.70 = 768,287.80 : x
  2. Step 2: Convert to fraction form
    1,065,719.80/1,598,579.70 = 768,287.80/x
  3. Step 3: Cross multiply
    1,065,719.80x = 1,598,579.70 × 768,287.80
  4. Step 4: Simplify right side
    1,065,719.80x = 1,228,169,280,837.66
  5. Step 5: Solve for x
    x = 1,228,169,280,837.66/1,065,719.80
  6. Step 6: Final answer
    x = 1,152,431.70

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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.