Home / 769,434.90-1,154,175.77-263,988.79

Finding the Fourth Proportional to 769,434.90, 1,154,175.77 and 263,988.79

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Solution

The fourth proportional to 769,434.90, 1,154,175.77 and 263,988.79 is: 395,991.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,434.90 : 1,154,175.77 = 263,988.79 : x
  2. Step 2: Convert to fraction form
    769,434.90/1,154,175.77 = 263,988.79/x
  3. Step 3: Cross multiply
    769,434.90x = 1,154,175.77 × 263,988.79
  4. Step 4: Simplify right side
    769,434.90x = 304,689,463,649.67
  5. Step 5: Solve for x
    x = 304,689,463,649.67/769,434.90
  6. Step 6: Final answer
    x = 395,991.22

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Double scale
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1.5x scale

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.