Home / 1,210,150.98-1,815,209.87-411,989.13

Finding the Fourth Proportional to 1,210,150.98, 1,815,209.87 and 411,989.13

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Solution

The fourth proportional to 1,210,150.98, 1,815,209.87 and 411,989.13 is: 617,978.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,150.98 : 1,815,209.87 = 411,989.13 : x
  2. Step 2: Convert to fraction form
    1,210,150.98/1,815,209.87 = 411,989.13/x
  3. Step 3: Cross multiply
    1,210,150.98x = 1,815,209.87 × 411,989.13
  4. Step 4: Simplify right side
    1,210,150.98x = 747,846,733,048.77
  5. Step 5: Solve for x
    x = 747,846,733,048.77/1,210,150.98
  6. Step 6: Final answer
    x = 617,978.04

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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.