Home / 755,821.12-1,042,985.22-416,289.34

Finding the Fourth Proportional to 755,821.12, 1,042,985.22 and 416,289.34

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Solution

The fourth proportional to 755,821.12, 1,042,985.22 and 416,289.34 is: 574,452.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,821.12 : 1,042,985.22 = 416,289.34 : x
  2. Step 2: Convert to fraction form
    755,821.12/1,042,985.22 = 416,289.34/x
  3. Step 3: Cross multiply
    755,821.12x = 1,042,985.22 × 416,289.34
  4. Step 4: Simplify right side
    755,821.12x = 434,183,628,863.56
  5. Step 5: Solve for x
    x = 434,183,628,863.56/755,821.12
  6. Step 6: Final answer
    x = 574,452.89

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Double scale
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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.