Home / 910,210.25-1,256,562.34-664,919.57

Finding the Fourth Proportional to 910,210.25, 1,256,562.34 and 664,919.57

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Solution

The fourth proportional to 910,210.25, 1,256,562.34 and 664,919.57 is: 917,933.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,210.25 : 1,256,562.34 = 664,919.57 : x
  2. Step 2: Convert to fraction form
    910,210.25/1,256,562.34 = 664,919.57/x
  3. Step 3: Cross multiply
    910,210.25x = 1,256,562.34 × 664,919.57
  4. Step 4: Simplify right side
    910,210.25x = 835,512,895,594.70
  5. Step 5: Solve for x
    x = 835,512,895,594.70/910,210.25
  6. Step 6: Final answer
    x = 917,933.96

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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.