Home / 815,306.87-1,223,110.65-268,230.07

Finding the Fourth Proportional to 815,306.87, 1,223,110.65 and 268,230.07

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Solution

The fourth proportional to 815,306.87, 1,223,110.65 and 268,230.07 is: 402,394.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,306.87 : 1,223,110.65 = 268,230.07 : x
  2. Step 2: Convert to fraction form
    815,306.87/1,223,110.65 = 268,230.07/x
  3. Step 3: Cross multiply
    815,306.87x = 1,223,110.65 × 268,230.07
  4. Step 4: Simplify right side
    815,306.87x = 328,075,055,267.25
  5. Step 5: Solve for x
    x = 328,075,055,267.25/815,306.87
  6. Step 6: Final answer
    x = 402,394.57

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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.