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Finding the Fourth Proportional to 607,267.40, 910,901.10 and 207,872.60

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Solution

The fourth proportional to 607,267.40, 910,901.10 and 207,872.60 is: 311,808.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,267.40 : 910,901.10 = 207,872.60 : x
  2. Step 2: Convert to fraction form
    607,267.40/910,901.10 = 207,872.60/x
  3. Step 3: Cross multiply
    607,267.40x = 910,901.10 × 207,872.60
  4. Step 4: Simplify right side
    607,267.40x = 189,351,379,999.86
  5. Step 5: Solve for x
    x = 189,351,379,999.86/607,267.40
  6. Step 6: Final answer
    x = 311,808.90

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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.