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Finding the Fourth Proportional to 704,797.71, 972,620.82 and 382,507.83

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Solution

The fourth proportional to 704,797.71, 972,620.82 and 382,507.83 is: 527,860.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,797.71 : 972,620.82 = 382,507.83 : x
  2. Step 2: Convert to fraction form
    704,797.71/972,620.82 = 382,507.83/x
  3. Step 3: Cross multiply
    704,797.71x = 972,620.82 × 382,507.83
  4. Step 4: Simplify right side
    704,797.71x = 372,035,079,271.02
  5. Step 5: Solve for x
    x = 372,035,079,271.02/704,797.71
  6. Step 6: Final answer
    x = 527,860.79

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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.