Home / 807,495.90-1,211,248.44-208,416.11

Finding the Fourth Proportional to 807,495.90, 1,211,248.44 and 208,416.11

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Solution

The fourth proportional to 807,495.90, 1,211,248.44 and 208,416.11 is: 312,625.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,495.90 : 1,211,248.44 = 208,416.11 : x
  2. Step 2: Convert to fraction form
    807,495.90/1,211,248.44 = 208,416.11/x
  3. Step 3: Cross multiply
    807,495.90x = 1,211,248.44 × 208,416.11
  4. Step 4: Simplify right side
    807,495.90x = 252,443,681,010.05
  5. Step 5: Solve for x
    x = 252,443,681,010.05/807,495.90
  6. Step 6: Final answer
    x = 312,625.34

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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.