Home / 808,768.40-1,213,444.20-779,608.40

Finding the Fourth Proportional to 808,768.40, 1,213,444.20 and 779,608.40

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Solution

The fourth proportional to 808,768.40, 1,213,444.20 and 779,608.40 is: 1,169,693.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,768.40 : 1,213,444.20 = 779,608.40 : x
  2. Step 2: Convert to fraction form
    808,768.40/1,213,444.20 = 779,608.40/x
  3. Step 3: Cross multiply
    808,768.40x = 1,213,444.20 × 779,608.40
  4. Step 4: Simplify right side
    808,768.40x = 946,011,291,251.28
  5. Step 5: Solve for x
    x = 946,011,291,251.28/808,768.40
  6. Step 6: Final answer
    x = 1,169,693.69

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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.