Home / 878,296.31-1,212,017.46-496,314.89

Finding the Fourth Proportional to 878,296.31, 1,212,017.46 and 496,314.89

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Solution

The fourth proportional to 878,296.31, 1,212,017.46 and 496,314.89 is: 684,896.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,296.31 : 1,212,017.46 = 496,314.89 : x
  2. Step 2: Convert to fraction form
    878,296.31/1,212,017.46 = 496,314.89/x
  3. Step 3: Cross multiply
    878,296.31x = 1,212,017.46 × 496,314.89
  4. Step 4: Simplify right side
    878,296.31x = 601,542,308,961.78
  5. Step 5: Solve for x
    x = 601,542,308,961.78/878,296.31
  6. Step 6: Final answer
    x = 684,896.77

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1.5x scale

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.