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Finding the Fourth Proportional to 707,485.73, 976,937.14 and 684,607.97

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Solution

The fourth proportional to 707,485.73, 976,937.14 and 684,607.97 is: 945,346.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,485.73 : 976,937.14 = 684,607.97 : x
  2. Step 2: Convert to fraction form
    707,485.73/976,937.14 = 684,607.97/x
  3. Step 3: Cross multiply
    707,485.73x = 976,937.14 × 684,607.97
  4. Step 4: Simplify right side
    707,485.73x = 668,818,950,208.90
  5. Step 5: Solve for x
    x = 668,818,950,208.90/707,485.73
  6. Step 6: Final answer
    x = 945,346.21

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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.