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Finding the Fourth Proportional to 707,687.36, 976,601.84 and 385,402.84

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Solution

The fourth proportional to 707,687.36, 976,601.84 and 385,402.84 is: 531,852.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,687.36 : 976,601.84 = 385,402.84 : x
  2. Step 2: Convert to fraction form
    707,687.36/976,601.84 = 385,402.84/x
  3. Step 3: Cross multiply
    707,687.36x = 976,601.84 × 385,402.84
  4. Step 4: Simplify right side
    707,687.36x = 376,385,118,316.71
  5. Step 5: Solve for x
    x = 376,385,118,316.71/707,687.36
  6. Step 6: Final answer
    x = 531,852.26

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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.