Home / 1,252,040.58-1,878,209.88-398,812.63

Finding the Fourth Proportional to 1,252,040.58, 1,878,209.88 and 398,812.63

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Solution

The fourth proportional to 1,252,040.58, 1,878,209.88 and 398,812.63 is: 598,266.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,040.58 : 1,878,209.88 = 398,812.63 : x
  2. Step 2: Convert to fraction form
    1,252,040.58/1,878,209.88 = 398,812.63/x
  3. Step 3: Cross multiply
    1,252,040.58x = 1,878,209.88 × 398,812.63
  4. Step 4: Simplify right side
    1,252,040.58x = 749,053,821,934.78
  5. Step 5: Solve for x
    x = 749,053,821,934.78/1,252,040.58
  6. Step 6: Final answer
    x = 598,266.41

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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.