Home / 830,101.40-1,245,152.10-269,135.90

Finding the Fourth Proportional to 830,101.40, 1,245,152.10 and 269,135.90

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Solution

The fourth proportional to 830,101.40, 1,245,152.10 and 269,135.90 is: 403,703.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,101.40 : 1,245,152.10 = 269,135.90 : x
  2. Step 2: Convert to fraction form
    830,101.40/1,245,152.10 = 269,135.90/x
  3. Step 3: Cross multiply
    830,101.40x = 1,245,152.10 × 269,135.90
  4. Step 4: Simplify right side
    830,101.40x = 335,115,131,070.39
  5. Step 5: Solve for x
    x = 335,115,131,070.39/830,101.40
  6. Step 6: Final answer
    x = 403,703.85

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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.