Home / 1,210,011.20-1,815,189.60-411,329.60

Finding the Fourth Proportional to 1,210,011.20, 1,815,189.60 and 411,329.60

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Solution

The fourth proportional to 1,210,011.20, 1,815,189.60 and 411,329.60 is: 617,053.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,011.20 : 1,815,189.60 = 411,329.60 : x
  2. Step 2: Convert to fraction form
    1,210,011.20/1,815,189.60 = 411,329.60/x
  3. Step 3: Cross multiply
    1,210,011.20x = 1,815,189.60 × 411,329.60
  4. Step 4: Simplify right side
    1,210,011.20x = 746,641,212,092.16
  5. Step 5: Solve for x
    x = 746,641,212,092.16/1,210,011.20
  6. Step 6: Final answer
    x = 617,053.14

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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.