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Finding the Fourth Proportional to 666,348.84, 999,522.46 and 217,068.98

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Solution

The fourth proportional to 666,348.84, 999,522.46 and 217,068.98 is: 325,603.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,348.84 : 999,522.46 = 217,068.98 : x
  2. Step 2: Convert to fraction form
    666,348.84/999,522.46 = 217,068.98/x
  3. Step 3: Cross multiply
    666,348.84x = 999,522.46 × 217,068.98
  4. Step 4: Simplify right side
    666,348.84x = 216,965,315,339.01
  5. Step 5: Solve for x
    x = 216,965,315,339.01/666,348.84
  6. Step 6: Final answer
    x = 325,603.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.