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Finding the Fourth Proportional to 486,031.44, 728,983.11 and 144,467.58

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Solution

The fourth proportional to 486,031.44, 728,983.11 and 144,467.58 is: 216,682.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,031.44 : 728,983.11 = 144,467.58 : x
  2. Step 2: Convert to fraction form
    486,031.44/728,983.11 = 144,467.58/x
  3. Step 3: Cross multiply
    486,031.44x = 728,983.11 × 144,467.58
  4. Step 4: Simplify right side
    486,031.44x = 105,314,425,762.57
  5. Step 5: Solve for x
    x = 105,314,425,762.57/486,031.44
  6. Step 6: Final answer
    x = 216,682.33

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1.5x scale

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.