Home / 785,422.35-1,178,145.36-299,131.41

Finding the Fourth Proportional to 785,422.35, 1,178,145.36 and 299,131.41

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Solution

The fourth proportional to 785,422.35, 1,178,145.36 and 299,131.41 is: 448,701.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,422.35 : 1,178,145.36 = 299,131.41 : x
  2. Step 2: Convert to fraction form
    785,422.35/1,178,145.36 = 299,131.41/x
  3. Step 3: Cross multiply
    785,422.35x = 1,178,145.36 × 299,131.41
  4. Step 4: Simplify right side
    785,422.35x = 352,420,282,721.76
  5. Step 5: Solve for x
    x = 352,420,282,721.76/785,422.35
  6. Step 6: Final answer
    x = 448,701.62

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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.