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Finding the Fourth Proportional to 707,631.37, 976,521.62 and 401,705.07

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Solution

The fourth proportional to 707,631.37, 976,521.62 and 401,705.07 is: 554,347.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,631.37 : 976,521.62 = 401,705.07 : x
  2. Step 2: Convert to fraction form
    707,631.37/976,521.62 = 401,705.07/x
  3. Step 3: Cross multiply
    707,631.37x = 976,521.62 × 401,705.07
  4. Step 4: Simplify right side
    707,631.37x = 392,273,683,060.92
  5. Step 5: Solve for x
    x = 392,273,683,060.92/707,631.37
  6. Step 6: Final answer
    x = 554,347.51

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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.