Home / 918,619.47-1,267,799.72-510,761.79

Finding the Fourth Proportional to 918,619.47, 1,267,799.72 and 510,761.79

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Solution

The fourth proportional to 918,619.47, 1,267,799.72 and 510,761.79 is: 704,909.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,619.47 : 1,267,799.72 = 510,761.79 : x
  2. Step 2: Convert to fraction form
    918,619.47/1,267,799.72 = 510,761.79/x
  3. Step 3: Cross multiply
    918,619.47x = 1,267,799.72 × 510,761.79
  4. Step 4: Simplify right side
    918,619.47x = 647,543,651,794.89
  5. Step 5: Solve for x
    x = 647,543,651,794.89/918,619.47
  6. Step 6: Final answer
    x = 704,909.57

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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.