Home / 1,388,895.15-2,083,542.34-429,425.55

Finding the Fourth Proportional to 1,388,895.15, 2,083,542.34 and 429,425.55

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Solution

The fourth proportional to 1,388,895.15, 2,083,542.34 and 429,425.55 is: 644,200.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,895.15 : 2,083,542.34 = 429,425.55 : x
  2. Step 2: Convert to fraction form
    1,388,895.15/2,083,542.34 = 429,425.55/x
  3. Step 3: Cross multiply
    1,388,895.15x = 2,083,542.34 × 429,425.55
  4. Step 4: Simplify right side
    1,388,895.15x = 894,726,302,737.95
  5. Step 5: Solve for x
    x = 894,726,302,737.95/1,388,895.15
  6. Step 6: Final answer
    x = 644,200.03

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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.