Home / 905,141.26-1,248,540.88-537,368.78

Finding the Fourth Proportional to 905,141.26, 1,248,540.88 and 537,368.78

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Solution

The fourth proportional to 905,141.26, 1,248,540.88 and 537,368.78 is: 741,239.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,141.26 : 1,248,540.88 = 537,368.78 : x
  2. Step 2: Convert to fraction form
    905,141.26/1,248,540.88 = 537,368.78/x
  3. Step 3: Cross multiply
    905,141.26x = 1,248,540.88 × 537,368.78
  4. Step 4: Simplify right side
    905,141.26x = 670,926,889,465.73
  5. Step 5: Solve for x
    x = 670,926,889,465.73/905,141.26
  6. Step 6: Final answer
    x = 741,239.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.