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Finding the Fourth Proportional to 665,304.20, 997,956.30 and 455,352.20

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Solution

The fourth proportional to 665,304.20, 997,956.30 and 455,352.20 is: 683,028.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,304.20 : 997,956.30 = 455,352.20 : x
  2. Step 2: Convert to fraction form
    665,304.20/997,956.30 = 455,352.20/x
  3. Step 3: Cross multiply
    665,304.20x = 997,956.30 × 455,352.20
  4. Step 4: Simplify right side
    665,304.20x = 454,421,596,708.86
  5. Step 5: Solve for x
    x = 454,421,596,708.86/665,304.20
  6. Step 6: Final answer
    x = 683,028.30

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Similar ratio
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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.