Home / 917,578.76-1,376,382.01-318,558.95

Finding the Fourth Proportional to 917,578.76, 1,376,382.01 and 318,558.95

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Solution

The fourth proportional to 917,578.76, 1,376,382.01 and 318,558.95 is: 477,843.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,578.76 : 1,376,382.01 = 318,558.95 : x
  2. Step 2: Convert to fraction form
    917,578.76/1,376,382.01 = 318,558.95/x
  3. Step 3: Cross multiply
    917,578.76x = 1,376,382.01 × 318,558.95
  4. Step 4: Simplify right side
    917,578.76x = 438,458,807,904.49
  5. Step 5: Solve for x
    x = 438,458,807,904.49/917,578.76
  6. Step 6: Final answer
    x = 477,843.24

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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.