Home / 817,774.20-1,226,661.30-687,137.40

Finding the Fourth Proportional to 817,774.20, 1,226,661.30 and 687,137.40

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Solution

The fourth proportional to 817,774.20, 1,226,661.30 and 687,137.40 is: 1,030,706.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,774.20 : 1,226,661.30 = 687,137.40 : x
  2. Step 2: Convert to fraction form
    817,774.20/1,226,661.30 = 687,137.40/x
  3. Step 3: Cross multiply
    817,774.20x = 1,226,661.30 × 687,137.40
  4. Step 4: Simplify right side
    817,774.20x = 842,884,856,362.62
  5. Step 5: Solve for x
    x = 842,884,856,362.62/817,774.20
  6. Step 6: Final answer
    x = 1,030,706.10

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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.