Home / 781,011.80-1,077,782.02-441,480.06

Finding the Fourth Proportional to 781,011.80, 1,077,782.02 and 441,480.06

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Solution

The fourth proportional to 781,011.80, 1,077,782.02 and 441,480.06 is: 609,234.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,011.80 : 1,077,782.02 = 441,480.06 : x
  2. Step 2: Convert to fraction form
    781,011.80/1,077,782.02 = 441,480.06/x
  3. Step 3: Cross multiply
    781,011.80x = 1,077,782.02 × 441,480.06
  4. Step 4: Simplify right side
    781,011.80x = 475,819,270,856.52
  5. Step 5: Solve for x
    x = 475,819,270,856.52/781,011.80
  6. Step 6: Final answer
    x = 609,234.42

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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.