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Finding the Fourth Proportional to 647,682.40, 969,968.40 and 523,266.40

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Solution

The fourth proportional to 647,682.40, 969,968.40 and 523,266.40 is: 783,643.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,682.40 : 969,968.40 = 523,266.40 : x
  2. Step 2: Convert to fraction form
    647,682.40/969,968.40 = 523,266.40/x
  3. Step 3: Cross multiply
    647,682.40x = 969,968.40 × 523,266.40
  4. Step 4: Simplify right side
    647,682.40x = 507,551,872,781.76
  5. Step 5: Solve for x
    x = 507,551,872,781.76/647,682.40
  6. Step 6: Final answer
    x = 783,643.14

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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.