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Finding the Fourth Proportional to 883,188.50, 1,218,800.14 and 480,780.50

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Solution

The fourth proportional to 883,188.50, 1,218,800.14 and 480,780.50 is: 663,477.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,188.50 : 1,218,800.14 = 480,780.50 : x
  2. Step 2: Convert to fraction form
    883,188.50/1,218,800.14 = 480,780.50/x
  3. Step 3: Cross multiply
    883,188.50x = 1,218,800.14 × 480,780.50
  4. Step 4: Simplify right side
    883,188.50x = 585,975,340,709.27
  5. Step 5: Solve for x
    x = 585,975,340,709.27/883,188.50
  6. Step 6: Final answer
    x = 663,477.10

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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.