Home / 762,544.36-1,143,760.65-313,143.40

Finding the Fourth Proportional to 762,544.36, 1,143,760.65 and 313,143.40

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Solution

The fourth proportional to 762,544.36, 1,143,760.65 and 313,143.40 is: 469,692.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,544.36 : 1,143,760.65 = 313,143.40 : x
  2. Step 2: Convert to fraction form
    762,544.36/1,143,760.65 = 313,143.40/x
  3. Step 3: Cross multiply
    762,544.36x = 1,143,760.65 × 313,143.40
  4. Step 4: Simplify right side
    762,544.36x = 358,161,098,727.21
  5. Step 5: Solve for x
    x = 358,161,098,727.21/762,544.36
  6. Step 6: Final answer
    x = 469,692.15

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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.