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Finding the Fourth Proportional to 897,896.97, 1,239,105.06 and 490,002.03

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Solution

The fourth proportional to 897,896.97, 1,239,105.06 and 490,002.03 is: 676,206.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,896.97 : 1,239,105.06 = 490,002.03 : x
  2. Step 2: Convert to fraction form
    897,896.97/1,239,105.06 = 490,002.03/x
  3. Step 3: Cross multiply
    897,896.97x = 1,239,105.06 × 490,002.03
  4. Step 4: Simplify right side
    897,896.97x = 607,163,994,783.27
  5. Step 5: Solve for x
    x = 607,163,994,783.27/897,896.97
  6. Step 6: Final answer
    x = 676,206.75

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1.5x scale

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.