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Finding the Fourth Proportional to 769,604.64, 1,062,055.82 and 430,072.88

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Solution

The fourth proportional to 769,604.64, 1,062,055.82 and 430,072.88 is: 593,501.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,604.64 : 1,062,055.82 = 430,072.88 : x
  2. Step 2: Convert to fraction form
    769,604.64/1,062,055.82 = 430,072.88/x
  3. Step 3: Cross multiply
    769,604.64x = 1,062,055.82 × 430,072.88
  4. Step 4: Simplify right side
    769,604.64x = 456,761,405,228.16
  5. Step 5: Solve for x
    x = 456,761,405,228.16/769,604.64
  6. Step 6: Final answer
    x = 593,501.37

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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.