Home / 769,429.51-1,154,167.69-263,983.40

Finding the Fourth Proportional to 769,429.51, 1,154,167.69 and 263,983.40

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Solution

The fourth proportional to 769,429.51, 1,154,167.69 and 263,983.40 is: 395,983.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,429.51 : 1,154,167.69 = 263,983.40 : x
  2. Step 2: Convert to fraction form
    769,429.51/1,154,167.69 = 263,983.40/x
  3. Step 3: Cross multiply
    769,429.51x = 1,154,167.69 × 263,983.40
  4. Step 4: Simplify right side
    769,429.51x = 304,681,105,205.51
  5. Step 5: Solve for x
    x = 304,681,105,205.51/769,429.51
  6. Step 6: Final answer
    x = 395,983.13

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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.