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Finding the Fourth Proportional to 865,900.80, 1,194,956.64 and 483,952.32

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Solution

The fourth proportional to 865,900.80, 1,194,956.64 and 483,952.32 is: 667,861.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,900.80 : 1,194,956.64 = 483,952.32 : x
  2. Step 2: Convert to fraction form
    865,900.80/1,194,956.64 = 483,952.32/x
  3. Step 3: Cross multiply
    865,900.80x = 1,194,956.64 × 483,952.32
  4. Step 4: Simplify right side
    865,900.80x = 578,302,038,227.41
  5. Step 5: Solve for x
    x = 578,302,038,227.41/865,900.80
  6. Step 6: Final answer
    x = 667,861.77

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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.