Home / 815,491.19-1,222,925.14-268,256.29

Finding the Fourth Proportional to 815,491.19, 1,222,925.14 and 268,256.29

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Solution

The fourth proportional to 815,491.19, 1,222,925.14 and 268,256.29 is: 402,281.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,491.19 : 1,222,925.14 = 268,256.29 : x
  2. Step 2: Convert to fraction form
    815,491.19/1,222,925.14 = 268,256.29/x
  3. Step 3: Cross multiply
    815,491.19x = 1,222,925.14 × 268,256.29
  4. Step 4: Simplify right side
    815,491.19x = 328,057,359,662.85
  5. Step 5: Solve for x
    x = 328,057,359,662.85/815,491.19
  6. Step 6: Final answer
    x = 402,281.92

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1.5x scale

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.