Home / 1,291,218.88-1,938,041.78-676,164.30

Finding the Fourth Proportional to 1,291,218.88, 1,938,041.78 and 676,164.30

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Solution

The fourth proportional to 1,291,218.88, 1,938,041.78 and 676,164.30 is: 1,014,881.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,218.88 : 1,938,041.78 = 676,164.30 : x
  2. Step 2: Convert to fraction form
    1,291,218.88/1,938,041.78 = 676,164.30/x
  3. Step 3: Cross multiply
    1,291,218.88x = 1,938,041.78 × 676,164.30
  4. Step 4: Simplify right side
    1,291,218.88x = 1,310,434,663,544.45
  5. Step 5: Solve for x
    x = 1,310,434,663,544.45/1,291,218.88
  6. Step 6: Final answer
    x = 1,014,881.89

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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.