Home / 725,084.08-1,000,644.40-496,121.58

Finding the Fourth Proportional to 725,084.08, 1,000,644.40 and 496,121.58

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Solution

The fourth proportional to 725,084.08, 1,000,644.40 and 496,121.58 is: 684,667.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,084.08 : 1,000,644.40 = 496,121.58 : x
  2. Step 2: Convert to fraction form
    725,084.08/1,000,644.40 = 496,121.58/x
  3. Step 3: Cross multiply
    725,084.08x = 1,000,644.40 × 496,121.58
  4. Step 4: Simplify right side
    725,084.08x = 496,441,280,746.15
  5. Step 5: Solve for x
    x = 496,441,280,746.15/725,084.08
  6. Step 6: Final answer
    x = 684,667.19

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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.