Home / 815,438.13-1,222,672.63-310,036.11

Finding the Fourth Proportional to 815,438.13, 1,222,672.63 and 310,036.11

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Solution

The fourth proportional to 815,438.13, 1,222,672.63 and 310,036.11 is: 464,869.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,438.13 : 1,222,672.63 = 310,036.11 : x
  2. Step 2: Convert to fraction form
    815,438.13/1,222,672.63 = 310,036.11/x
  3. Step 3: Cross multiply
    815,438.13x = 1,222,672.63 × 310,036.11
  4. Step 4: Simplify right side
    815,438.13x = 379,072,666,008.67
  5. Step 5: Solve for x
    x = 379,072,666,008.67/815,438.13
  6. Step 6: Final answer
    x = 464,869.93

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.