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Finding the Fourth Proportional to 630,443.68, 945,133.26 and 293,310.28

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Solution

The fourth proportional to 630,443.68, 945,133.26 and 293,310.28 is: 439,717.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,443.68 : 945,133.26 = 293,310.28 : x
  2. Step 2: Convert to fraction form
    630,443.68/945,133.26 = 293,310.28/x
  3. Step 3: Cross multiply
    630,443.68x = 945,133.26 × 293,310.28
  4. Step 4: Simplify right side
    630,443.68x = 277,217,301,127.91
  5. Step 5: Solve for x
    x = 277,217,301,127.91/630,443.68
  6. Step 6: Final answer
    x = 439,717.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.