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Finding the Fourth Proportional to 887,774, 1,225,132.44 and 485,366

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Solution

The fourth proportional to 887,774, 1,225,132.44 and 485,366 is: 669,807.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,774 : 1,225,132.44 = 485,366 : x
  2. Step 2: Convert to fraction form
    887,774/1,225,132.44 = 485,366/x
  3. Step 3: Cross multiply
    887,774x = 1,225,132.44 × 485,366
  4. Step 4: Simplify right side
    887,774x = 594,637,631,873.04
  5. Step 5: Solve for x
    x = 594,637,631,873.04/887,774
  6. Step 6: Final answer
    x = 669,807.44

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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.