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Finding the Fourth Proportional to 780,604.86, 1,077,220.71 and 441,065.82

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Solution

The fourth proportional to 780,604.86, 1,077,220.71 and 441,065.82 is: 608,662.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,604.86 : 1,077,220.71 = 441,065.82 : x
  2. Step 2: Convert to fraction form
    780,604.86/1,077,220.71 = 441,065.82/x
  3. Step 3: Cross multiply
    780,604.86x = 1,077,220.71 × 441,065.82
  4. Step 4: Simplify right side
    780,604.86x = 475,125,235,777.13
  5. Step 5: Solve for x
    x = 475,125,235,777.13/780,604.86
  6. Step 6: Final answer
    x = 608,662.92

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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.