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Finding the Fourth Proportional to 697,915.51, 963,099.12 and 426,437.80

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Solution

The fourth proportional to 697,915.51, 963,099.12 and 426,437.80 is: 588,469.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,915.51 : 963,099.12 = 426,437.80 : x
  2. Step 2: Convert to fraction form
    697,915.51/963,099.12 = 426,437.80/x
  3. Step 3: Cross multiply
    697,915.51x = 963,099.12 × 426,437.80
  4. Step 4: Simplify right side
    697,915.51x = 410,701,869,914.74
  5. Step 5: Solve for x
    x = 410,701,869,914.74/697,915.51
  6. Step 6: Final answer
    x = 588,469.33

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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.