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Finding the Fourth Proportional to 707,502.11, 976,246.75 and 397,392.79

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Solution

The fourth proportional to 707,502.11, 976,246.75 and 397,392.79 is: 548,342.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,502.11 : 976,246.75 = 397,392.79 : x
  2. Step 2: Convert to fraction form
    707,502.11/976,246.75 = 397,392.79/x
  3. Step 3: Cross multiply
    707,502.11x = 976,246.75 × 397,392.79
  4. Step 4: Simplify right side
    707,502.11x = 387,953,416,276.83
  5. Step 5: Solve for x
    x = 387,953,416,276.83/707,502.11
  6. Step 6: Final answer
    x = 548,342.42

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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.