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Finding the Fourth Proportional to 690,069.11, 952,285.10 and 384,144.93

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Solution

The fourth proportional to 690,069.11, 952,285.10 and 384,144.93 is: 530,114.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,069.11 : 952,285.10 = 384,144.93 : x
  2. Step 2: Convert to fraction form
    690,069.11/952,285.10 = 384,144.93/x
  3. Step 3: Cross multiply
    690,069.11x = 952,285.10 × 384,144.93
  4. Step 4: Simplify right side
    690,069.11x = 365,815,491,158.82
  5. Step 5: Solve for x
    x = 365,815,491,158.82/690,069.11
  6. Step 6: Final answer
    x = 530,114.29

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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.