Home / 1,187,958.94-1,781,151.29-429,700.63

Finding the Fourth Proportional to 1,187,958.94, 1,781,151.29 and 429,700.63

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Solution

The fourth proportional to 1,187,958.94, 1,781,151.29 and 429,700.63 is: 644,266.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,958.94 : 1,781,151.29 = 429,700.63 : x
  2. Step 2: Convert to fraction form
    1,187,958.94/1,781,151.29 = 429,700.63/x
  3. Step 3: Cross multiply
    1,187,958.94x = 1,781,151.29 × 429,700.63
  4. Step 4: Simplify right side
    1,187,958.94x = 765,361,831,438.31
  5. Step 5: Solve for x
    x = 765,361,831,438.31/1,187,958.94
  6. Step 6: Final answer
    x = 644,266.23

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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.