Home / 788,312.25-1,087,872.12-448,780.50

Finding the Fourth Proportional to 788,312.25, 1,087,872.12 and 448,780.50

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Solution

The fourth proportional to 788,312.25, 1,087,872.12 and 448,780.50 is: 619,317.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,312.25 : 1,087,872.12 = 448,780.50 : x
  2. Step 2: Convert to fraction form
    788,312.25/1,087,872.12 = 448,780.50/x
  3. Step 3: Cross multiply
    788,312.25x = 1,087,872.12 × 448,780.50
  4. Step 4: Simplify right side
    788,312.25x = 488,215,793,949.66
  5. Step 5: Solve for x
    x = 488,215,793,949.66/788,312.25
  6. Step 6: Final answer
    x = 619,317.78

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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.