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Finding the Fourth Proportional to 654,498.63, 903,175.11 and 368,001.63

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Solution

The fourth proportional to 654,498.63, 903,175.11 and 368,001.63 is: 507,823.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,498.63 : 903,175.11 = 368,001.63 : x
  2. Step 2: Convert to fraction form
    654,498.63/903,175.11 = 368,001.63/x
  3. Step 3: Cross multiply
    654,498.63x = 903,175.11 × 368,001.63
  4. Step 4: Simplify right side
    654,498.63x = 332,369,912,655.43
  5. Step 5: Solve for x
    x = 332,369,912,655.43/654,498.63
  6. Step 6: Final answer
    x = 507,823.69

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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.