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Finding the Fourth Proportional to 880,095.28, 1,214,499 and 477,678.64

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Solution

The fourth proportional to 880,095.28, 1,214,499 and 477,678.64 is: 659,178.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,095.28 : 1,214,499 = 477,678.64 : x
  2. Step 2: Convert to fraction form
    880,095.28/1,214,499 = 477,678.64/x
  3. Step 3: Cross multiply
    880,095.28x = 1,214,499 × 477,678.64
  4. Step 4: Simplify right side
    880,095.28x = 580,140,230,601.36
  5. Step 5: Solve for x
    x = 580,140,230,601.36/880,095.28
  6. Step 6: Final answer
    x = 659,178.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.