Home / 1,399,493.55-1,931,486.66-787,765.05

Finding the Fourth Proportional to 1,399,493.55, 1,931,486.66 and 787,765.05

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Solution

The fourth proportional to 1,399,493.55, 1,931,486.66 and 787,765.05 is: 1,087,220.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,493.55 : 1,931,486.66 = 787,765.05 : x
  2. Step 2: Convert to fraction form
    1,399,493.55/1,931,486.66 = 787,765.05/x
  3. Step 3: Cross multiply
    1,399,493.55x = 1,931,486.66 × 787,765.05
  4. Step 4: Simplify right side
    1,399,493.55x = 1,521,557,681,350.41
  5. Step 5: Solve for x
    x = 1,521,557,681,350.41/1,399,493.55
  6. Step 6: Final answer
    x = 1,087,220.22

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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.