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Finding the Fourth Proportional to 880,292.84, 1,214,833 and 498,311.40

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Solution

The fourth proportional to 880,292.84, 1,214,833 and 498,311.40 is: 687,686.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,292.84 : 1,214,833 = 498,311.40 : x
  2. Step 2: Convert to fraction form
    880,292.84/1,214,833 = 498,311.40/x
  3. Step 3: Cross multiply
    880,292.84x = 1,214,833 × 498,311.40
  4. Step 4: Simplify right side
    880,292.84x = 605,365,132,996.20
  5. Step 5: Solve for x
    x = 605,365,132,996.20/880,292.84
  6. Step 6: Final answer
    x = 687,686.08

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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.