Home / 1,292,496.56-1,938,717.12-345,867.20

Finding the Fourth Proportional to 1,292,496.56, 1,938,717.12 and 345,867.20

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Solution

The fourth proportional to 1,292,496.56, 1,938,717.12 and 345,867.20 is: 518,793.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,496.56 : 1,938,717.12 = 345,867.20 : x
  2. Step 2: Convert to fraction form
    1,292,496.56/1,938,717.12 = 345,867.20/x
  3. Step 3: Cross multiply
    1,292,496.56x = 1,938,717.12 × 345,867.20
  4. Step 4: Simplify right side
    1,292,496.56x = 670,538,661,886.46
  5. Step 5: Solve for x
    x = 670,538,661,886.46/1,292,496.56
  6. Step 6: Final answer
    x = 518,793.38

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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.