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Finding the Fourth Proportional to 707,012.19, 976,660.89 and 680,764.16

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Solution

The fourth proportional to 707,012.19, 976,660.89 and 680,764.16 is: 940,402.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,012.19 : 976,660.89 = 680,764.16 : x
  2. Step 2: Convert to fraction form
    707,012.19/976,660.89 = 680,764.16/x
  3. Step 3: Cross multiply
    707,012.19x = 976,660.89 × 680,764.16
  4. Step 4: Simplify right side
    707,012.19x = 664,875,726,981.88
  5. Step 5: Solve for x
    x = 664,875,726,981.88/707,012.19
  6. Step 6: Final answer
    x = 940,402.08

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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.