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Finding the Fourth Proportional to 850,601.10, 1,275,901.65 and 702,978.60

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Solution

The fourth proportional to 850,601.10, 1,275,901.65 and 702,978.60 is: 1,054,467.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,601.10 : 1,275,901.65 = 702,978.60 : x
  2. Step 2: Convert to fraction form
    850,601.10/1,275,901.65 = 702,978.60/x
  3. Step 3: Cross multiply
    850,601.10x = 1,275,901.65 × 702,978.60
  4. Step 4: Simplify right side
    850,601.10x = 896,931,555,654.69
  5. Step 5: Solve for x
    x = 896,931,555,654.69/850,601.10
  6. Step 6: Final answer
    x = 1,054,467.90

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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.