Home / 1,281,531.98-1,768,378.82-708,479.66

Finding the Fourth Proportional to 1,281,531.98, 1,768,378.82 and 708,479.66

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Solution

The fourth proportional to 1,281,531.98, 1,768,378.82 and 708,479.66 is: 977,627.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,531.98 : 1,768,378.82 = 708,479.66 : x
  2. Step 2: Convert to fraction form
    1,281,531.98/1,768,378.82 = 708,479.66/x
  3. Step 3: Cross multiply
    1,281,531.98x = 1,768,378.82 × 708,479.66
  4. Step 4: Simplify right side
    1,281,531.98x = 1,252,860,425,144.80
  5. Step 5: Solve for x
    x = 1,252,860,425,144.80/1,281,531.98
  6. Step 6: Final answer
    x = 977,627.12

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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.