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Finding the Fourth Proportional to 888,020.64, 1,225,443.60 and 485,604

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Solution

The fourth proportional to 888,020.64, 1,225,443.60 and 485,604 is: 670,119.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,020.64 : 1,225,443.60 = 485,604 : x
  2. Step 2: Convert to fraction form
    888,020.64/1,225,443.60 = 485,604/x
  3. Step 3: Cross multiply
    888,020.64x = 1,225,443.60 × 485,604
  4. Step 4: Simplify right side
    888,020.64x = 595,080,313,934.40
  5. Step 5: Solve for x
    x = 595,080,313,934.40/888,020.64
  6. Step 6: Final answer
    x = 670,119.91

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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.