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Finding the Fourth Proportional to 648,265.57, 894,519.99 and 376,330.34

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Solution

The fourth proportional to 648,265.57, 894,519.99 and 376,330.34 is: 519,285.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,265.57 : 894,519.99 = 376,330.34 : x
  2. Step 2: Convert to fraction form
    648,265.57/894,519.99 = 376,330.34/x
  3. Step 3: Cross multiply
    648,265.57x = 894,519.99 × 376,330.34
  4. Step 4: Simplify right side
    648,265.57x = 336,635,014,209.80
  5. Step 5: Solve for x
    x = 336,635,014,209.80/648,265.57
  6. Step 6: Final answer
    x = 519,285.66

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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.