Home / 762,205.52-1,143,141.42-312,483.80

Finding the Fourth Proportional to 762,205.52, 1,143,141.42 and 312,483.80

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Solution

The fourth proportional to 762,205.52, 1,143,141.42 and 312,483.80 is: 468,657.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,205.52 : 1,143,141.42 = 312,483.80 : x
  2. Step 2: Convert to fraction form
    762,205.52/1,143,141.42 = 312,483.80/x
  3. Step 3: Cross multiply
    762,205.52x = 1,143,141.42 × 312,483.80
  4. Step 4: Simplify right side
    762,205.52x = 357,213,174,859.00
  5. Step 5: Solve for x
    x = 357,213,174,859.00/762,205.52
  6. Step 6: Final answer
    x = 468,657.29

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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.