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Finding the Fourth Proportional to 880,329.60, 1,323,313.20 and 817,927.20

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Solution

The fourth proportional to 880,329.60, 1,323,313.20 and 817,927.20 is: 1,229,509.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,329.60 : 1,323,313.20 = 817,927.20 : x
  2. Step 2: Convert to fraction form
    880,329.60/1,323,313.20 = 817,927.20/x
  3. Step 3: Cross multiply
    880,329.60x = 1,323,313.20 × 817,927.20
  4. Step 4: Simplify right side
    880,329.60x = 1,082,373,860,399.04
  5. Step 5: Solve for x
    x = 1,082,373,860,399.04/880,329.60
  6. Step 6: Final answer
    x = 1,229,509.79

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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.