Home / 781,012.80-1,077,783.40-441,481.06

Finding the Fourth Proportional to 781,012.80, 1,077,783.40 and 441,481.06

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Solution

The fourth proportional to 781,012.80, 1,077,783.40 and 441,481.06 is: 609,235.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,012.80 : 1,077,783.40 = 441,481.06 : x
  2. Step 2: Convert to fraction form
    781,012.80/1,077,783.40 = 441,481.06/x
  3. Step 3: Cross multiply
    781,012.80x = 1,077,783.40 × 441,481.06
  4. Step 4: Simplify right side
    781,012.80x = 475,820,957,882.40
  5. Step 5: Solve for x
    x = 475,820,957,882.40/781,012.80
  6. Step 6: Final answer
    x = 609,235.80

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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.