Home / 738,394.31-1,107,591.47-177,428.81

Finding the Fourth Proportional to 738,394.31, 1,107,591.47 and 177,428.81

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Solution

The fourth proportional to 738,394.31, 1,107,591.47 and 177,428.81 is: 266,143.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,394.31 : 1,107,591.47 = 177,428.81 : x
  2. Step 2: Convert to fraction form
    738,394.31/1,107,591.47 = 177,428.81/x
  3. Step 3: Cross multiply
    738,394.31x = 1,107,591.47 × 177,428.81
  4. Step 4: Simplify right side
    738,394.31x = 196,518,638,813.66
  5. Step 5: Solve for x
    x = 196,518,638,813.66/738,394.31
  6. Step 6: Final answer
    x = 266,143.22

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Similar ratio
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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.