Home / 1,242,255.40-1,864,784.70-822,351.40

Finding the Fourth Proportional to 1,242,255.40, 1,864,784.70 and 822,351.40

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Solution

The fourth proportional to 1,242,255.40, 1,864,784.70 and 822,351.40 is: 1,234,454.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,255.40 : 1,864,784.70 = 822,351.40 : x
  2. Step 2: Convert to fraction form
    1,242,255.40/1,864,784.70 = 822,351.40/x
  3. Step 3: Cross multiply
    1,242,255.40x = 1,864,784.70 × 822,351.40
  4. Step 4: Simplify right side
    1,242,255.40x = 1,533,508,308,743.58
  5. Step 5: Solve for x
    x = 1,533,508,308,743.58/1,242,255.40
  6. Step 6: Final answer
    x = 1,234,454.93

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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.