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Finding the Fourth Proportional to 478,871.88, 660,872.98 and 264,011.62

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Solution

The fourth proportional to 478,871.88, 660,872.98 and 264,011.62 is: 364,352.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,871.88 : 660,872.98 = 264,011.62 : x
  2. Step 2: Convert to fraction form
    478,871.88/660,872.98 = 264,011.62/x
  3. Step 3: Cross multiply
    478,871.88x = 660,872.98 × 264,011.62
  4. Step 4: Simplify right side
    478,871.88x = 174,478,146,064.03
  5. Step 5: Solve for x
    x = 174,478,146,064.03/478,871.88
  6. Step 6: Final answer
    x = 364,352.46

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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.