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Finding the Fourth Proportional to 697,915.82, 963,099.55 and 426,438.11

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Solution

The fourth proportional to 697,915.82, 963,099.55 and 426,438.11 is: 588,469.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,915.82 : 963,099.55 = 426,438.11 : x
  2. Step 2: Convert to fraction form
    697,915.82/963,099.55 = 426,438.11/x
  3. Step 3: Cross multiply
    697,915.82x = 963,099.55 × 426,438.11
  4. Step 4: Simplify right side
    697,915.82x = 410,702,354,784.65
  5. Step 5: Solve for x
    x = 410,702,354,784.65/697,915.82
  6. Step 6: Final answer
    x = 588,469.76

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1.5x scale

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.