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Finding the Fourth Proportional to 939,704, 1,297,867.92 and 618,848.24

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Solution

The fourth proportional to 939,704, 1,297,867.92 and 618,848.24 is: 854,719.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,704 : 1,297,867.92 = 618,848.24 : x
  2. Step 2: Convert to fraction form
    939,704/1,297,867.92 = 618,848.24/x
  3. Step 3: Cross multiply
    939,704x = 1,297,867.92 × 618,848.24
  4. Step 4: Simplify right side
    939,704x = 803,183,278,044.46
  5. Step 5: Solve for x
    x = 803,183,278,044.46/939,704
  6. Step 6: Final answer
    x = 854,719.44

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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.