Home / 1,388,909.03-2,083,563.14-429,439.39

Finding the Fourth Proportional to 1,388,909.03, 2,083,563.14 and 429,439.39

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Solution

The fourth proportional to 1,388,909.03, 2,083,563.14 and 429,439.39 is: 644,220.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,909.03 : 2,083,563.14 = 429,439.39 : x
  2. Step 2: Convert to fraction form
    1,388,909.03/2,083,563.14 = 429,439.39/x
  3. Step 3: Cross multiply
    1,388,909.03x = 2,083,563.14 × 429,439.39
  4. Step 4: Simplify right side
    1,388,909.03x = 894,764,076,511.98
  5. Step 5: Solve for x
    x = 894,764,076,511.98/1,388,909.03
  6. Step 6: Final answer
    x = 644,220.80

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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.