Home / 769,260.42-1,062,080.64-688,550.40

Finding the Fourth Proportional to 769,260.42, 1,062,080.64 and 688,550.40

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Solution

The fourth proportional to 769,260.42, 1,062,080.64 and 688,550.40 is: 950,648.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,260.42 : 1,062,080.64 = 688,550.40 : x
  2. Step 2: Convert to fraction form
    769,260.42/1,062,080.64 = 688,550.40/x
  3. Step 3: Cross multiply
    769,260.42x = 1,062,080.64 × 688,550.40
  4. Step 4: Simplify right side
    769,260.42x = 731,296,049,504.26
  5. Step 5: Solve for x
    x = 731,296,049,504.26/769,260.42
  6. Step 6: Final answer
    x = 950,648.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.