Home / 878,725.80-1,318,304.70-247,631.40

Finding the Fourth Proportional to 878,725.80, 1,318,304.70 and 247,631.40

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Solution

The fourth proportional to 878,725.80, 1,318,304.70 and 247,631.40 is: 371,507.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,725.80 : 1,318,304.70 = 247,631.40 : x
  2. Step 2: Convert to fraction form
    878,725.80/1,318,304.70 = 247,631.40/x
  3. Step 3: Cross multiply
    878,725.80x = 1,318,304.70 × 247,631.40
  4. Step 4: Simplify right side
    878,725.80x = 326,453,638,487.58
  5. Step 5: Solve for x
    x = 326,453,638,487.58/878,725.80
  6. Step 6: Final answer
    x = 371,507.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.