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Finding the Fourth Proportional to 883,289.76, 1,218,940 and 480,881.76

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Solution

The fourth proportional to 883,289.76, 1,218,940 and 480,881.76 is: 663,616.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,289.76 : 1,218,940 = 480,881.76 : x
  2. Step 2: Convert to fraction form
    883,289.76/1,218,940 = 480,881.76/x
  3. Step 3: Cross multiply
    883,289.76x = 1,218,940 × 480,881.76
  4. Step 4: Simplify right side
    883,289.76x = 586,166,012,534.40
  5. Step 5: Solve for x
    x = 586,166,012,534.40/883,289.76
  6. Step 6: Final answer
    x = 663,616.90

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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.