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Finding the Fourth Proportional to 442,962.80, 664,444.20 and 364,230.80

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Solution

The fourth proportional to 442,962.80, 664,444.20 and 364,230.80 is: 546,346.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,962.80 : 664,444.20 = 364,230.80 : x
  2. Step 2: Convert to fraction form
    442,962.80/664,444.20 = 364,230.80/x
  3. Step 3: Cross multiply
    442,962.80x = 664,444.20 × 364,230.80
  4. Step 4: Simplify right side
    442,962.80x = 242,011,042,521.36
  5. Step 5: Solve for x
    x = 242,011,042,521.36/442,962.80
  6. Step 6: Final answer
    x = 546,346.20

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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.