Home / 1,421,184.60-1,961,346.54-809,363.24

Finding the Fourth Proportional to 1,421,184.60, 1,961,346.54 and 809,363.24

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Solution

The fourth proportional to 1,421,184.60, 1,961,346.54 and 809,363.24 is: 1,116,984.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,184.60 : 1,961,346.54 = 809,363.24 : x
  2. Step 2: Convert to fraction form
    1,421,184.60/1,961,346.54 = 809,363.24/x
  3. Step 3: Cross multiply
    1,421,184.60x = 1,961,346.54 × 809,363.24
  4. Step 4: Simplify right side
    1,421,184.60x = 1,587,441,790,377.19
  5. Step 5: Solve for x
    x = 1,587,441,790,377.19/1,421,184.60
  6. Step 6: Final answer
    x = 1,116,984.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.