Home / 691,029.32-953,578.49-380,918.30

Finding the Fourth Proportional to 691,029.32, 953,578.49 and 380,918.30

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Solution

The fourth proportional to 691,029.32, 953,578.49 and 380,918.30 is: 525,644.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,029.32 : 953,578.49 = 380,918.30 : x
  2. Step 2: Convert to fraction form
    691,029.32/953,578.49 = 380,918.30/x
  3. Step 3: Cross multiply
    691,029.32x = 953,578.49 × 380,918.30
  4. Step 4: Simplify right side
    691,029.32x = 363,235,490,654.88
  5. Step 5: Solve for x
    x = 363,235,490,654.88/691,029.32
  6. Step 6: Final answer
    x = 525,644.11

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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.