Home / 814,483.36-1,220,478.08-340,910.88

Finding the Fourth Proportional to 814,483.36, 1,220,478.08 and 340,910.88

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Solution

The fourth proportional to 814,483.36, 1,220,478.08 and 340,910.88 is: 510,844.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,483.36 : 1,220,478.08 = 340,910.88 : x
  2. Step 2: Convert to fraction form
    814,483.36/1,220,478.08 = 340,910.88/x
  3. Step 3: Cross multiply
    814,483.36x = 1,220,478.08 × 340,910.88
  4. Step 4: Simplify right side
    814,483.36x = 416,074,256,273.51
  5. Step 5: Solve for x
    x = 416,074,256,273.51/814,483.36
  6. Step 6: Final answer
    x = 510,844.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.