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Finding the Fourth Proportional to 887,122, 1,224,228.36 and 484,714

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Solution

The fourth proportional to 887,122, 1,224,228.36 and 484,714 is: 668,905.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,122 : 1,224,228.36 = 484,714 : x
  2. Step 2: Convert to fraction form
    887,122/1,224,228.36 = 484,714/x
  3. Step 3: Cross multiply
    887,122x = 1,224,228.36 × 484,714
  4. Step 4: Simplify right side
    887,122x = 593,400,625,289.04
  5. Step 5: Solve for x
    x = 593,400,625,289.04/887,122
  6. Step 6: Final answer
    x = 668,905.32

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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.