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Finding the Fourth Proportional to 700,643.52, 959,885.10 and 674,403.30

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Solution

The fourth proportional to 700,643.52, 959,885.10 and 674,403.30 is: 923,935.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,643.52 : 959,885.10 = 674,403.30 : x
  2. Step 2: Convert to fraction form
    700,643.52/959,885.10 = 674,403.30/x
  3. Step 3: Cross multiply
    700,643.52x = 959,885.10 × 674,403.30
  4. Step 4: Simplify right side
    700,643.52x = 647,349,679,060.83
  5. Step 5: Solve for x
    x = 647,349,679,060.83/700,643.52
  6. Step 6: Final answer
    x = 923,935.87

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.