Home / 896,900.20-1,238,903.74-664,797.66

Finding the Fourth Proportional to 896,900.20, 1,238,903.74 and 664,797.66

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Solution

The fourth proportional to 896,900.20, 1,238,903.74 and 664,797.66 is: 918,296.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,900.20 : 1,238,903.74 = 664,797.66 : x
  2. Step 2: Convert to fraction form
    896,900.20/1,238,903.74 = 664,797.66/x
  3. Step 3: Cross multiply
    896,900.20x = 1,238,903.74 × 664,797.66
  4. Step 4: Simplify right side
    896,900.20x = 823,620,307,317.25
  5. Step 5: Solve for x
    x = 823,620,307,317.25/896,900.20
  6. Step 6: Final answer
    x = 918,296.49

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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.