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Finding the Fourth Proportional to 642,234.42, 963,486.89 and 242,866.35

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Solution

The fourth proportional to 642,234.42, 963,486.89 and 242,866.35 is: 364,350.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,234.42 : 963,486.89 = 242,866.35 : x
  2. Step 2: Convert to fraction form
    642,234.42/963,486.89 = 242,866.35/x
  3. Step 3: Cross multiply
    642,234.42x = 963,486.89 × 242,866.35
  4. Step 4: Simplify right side
    642,234.42x = 233,998,544,854.32
  5. Step 5: Solve for x
    x = 233,998,544,854.32/642,234.42
  6. Step 6: Final answer
    x = 364,350.68

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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.