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Finding the Fourth Proportional to 478,891.62, 660,900.06 and 264,031.20

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Solution

The fourth proportional to 478,891.62, 660,900.06 and 264,031.20 is: 364,379.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,891.62 : 660,900.06 = 264,031.20 : x
  2. Step 2: Convert to fraction form
    478,891.62/660,900.06 = 264,031.20/x
  3. Step 3: Cross multiply
    478,891.62x = 660,900.06 × 264,031.20
  4. Step 4: Simplify right side
    478,891.62x = 174,498,235,921.87
  5. Step 5: Solve for x
    x = 174,498,235,921.87/478,891.62
  6. Step 6: Final answer
    x = 364,379.39

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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.