Home / 822,221.40-1,233,882.90-289,743.60

Finding the Fourth Proportional to 822,221.40, 1,233,882.90 and 289,743.60

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Solution

The fourth proportional to 822,221.40, 1,233,882.90 and 289,743.60 is: 434,809.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,221.40 : 1,233,882.90 = 289,743.60 : x
  2. Step 2: Convert to fraction form
    822,221.40/1,233,882.90 = 289,743.60/x
  3. Step 3: Cross multiply
    822,221.40x = 1,233,882.90 × 289,743.60
  4. Step 4: Simplify right side
    822,221.40x = 357,509,673,424.44
  5. Step 5: Solve for x
    x = 357,509,673,424.44/822,221.40
  6. Step 6: Final answer
    x = 434,809.50

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1.5x scale

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.