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Finding the Fourth Proportional to 654,758.40, 903,557.52 and 368,278.68

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Solution

The fourth proportional to 654,758.40, 903,557.52 and 368,278.68 is: 508,219.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,758.40 : 903,557.52 = 368,278.68 : x
  2. Step 2: Convert to fraction form
    654,758.40/903,557.52 = 368,278.68/x
  3. Step 3: Cross multiply
    654,758.40x = 903,557.52 × 368,278.68
  4. Step 4: Simplify right side
    654,758.40x = 332,760,970,769.67
  5. Step 5: Solve for x
    x = 332,760,970,769.67/654,758.40
  6. Step 6: Final answer
    x = 508,219.48

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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.