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Finding the Fourth Proportional to 641,730.42, 885,598.44 and 351,337.10

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Solution

The fourth proportional to 641,730.42, 885,598.44 and 351,337.10 is: 484,850.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,730.42 : 885,598.44 = 351,337.10 : x
  2. Step 2: Convert to fraction form
    641,730.42/885,598.44 = 351,337.10/x
  3. Step 3: Cross multiply
    641,730.42x = 885,598.44 × 351,337.10
  4. Step 4: Simplify right side
    641,730.42x = 311,143,587,674.12
  5. Step 5: Solve for x
    x = 311,143,587,674.12/641,730.42
  6. Step 6: Final answer
    x = 484,850.92

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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.