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Finding the Fourth Proportional to 704,682.70, 972,464.74 and 382,392.86

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Solution

The fourth proportional to 704,682.70, 972,464.74 and 382,392.86 is: 527,703.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,682.70 : 972,464.74 = 382,392.86 : x
  2. Step 2: Convert to fraction form
    704,682.70/972,464.74 = 382,392.86/x
  3. Step 3: Cross multiply
    704,682.70x = 972,464.74 × 382,392.86
  4. Step 4: Simplify right side
    704,682.70x = 371,863,569,790.61
  5. Step 5: Solve for x
    x = 371,863,569,790.61/704,682.70
  6. Step 6: Final answer
    x = 527,703.56

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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.