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Finding the Fourth Proportional to 707,822.70, 976,806.42 and 385,532.70

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Solution

The fourth proportional to 707,822.70, 976,806.42 and 385,532.70 is: 532,041.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,822.70 : 976,806.42 = 385,532.70 : x
  2. Step 2: Convert to fraction form
    707,822.70/976,806.42 = 385,532.70/x
  3. Step 3: Cross multiply
    707,822.70x = 976,806.42 × 385,532.70
  4. Step 4: Simplify right side
    707,822.70x = 376,590,816,479.93
  5. Step 5: Solve for x
    x = 376,590,816,479.93/707,822.70
  6. Step 6: Final answer
    x = 532,041.17

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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.