Home / 1,210,155.48-1,815,216.60-411,993.63

Finding the Fourth Proportional to 1,210,155.48, 1,815,216.60 and 411,993.63

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Solution

The fourth proportional to 1,210,155.48, 1,815,216.60 and 411,993.63 is: 617,984.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,155.48 : 1,815,216.60 = 411,993.63 : x
  2. Step 2: Convert to fraction form
    1,210,155.48/1,815,216.60 = 411,993.63/x
  3. Step 3: Cross multiply
    1,210,155.48x = 1,815,216.60 × 411,993.63
  4. Step 4: Simplify right side
    1,210,155.48x = 747,857,676,270.26
  5. Step 5: Solve for x
    x = 747,857,676,270.26/1,210,155.48
  6. Step 6: Final answer
    x = 617,984.79

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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.