Home / 817,824.80-1,224,404.40-724,512.80

Finding the Fourth Proportional to 817,824.80, 1,224,404.40 and 724,512.80

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Solution

The fourth proportional to 817,824.80, 1,224,404.40 and 724,512.80 is: 1,084,702.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,824.80 : 1,224,404.40 = 724,512.80 : x
  2. Step 2: Convert to fraction form
    817,824.80/1,224,404.40 = 724,512.80/x
  3. Step 3: Cross multiply
    817,824.80x = 1,224,404.40 × 724,512.80
  4. Step 4: Simplify right side
    817,824.80x = 887,096,660,176.32
  5. Step 5: Solve for x
    x = 887,096,660,176.32/817,824.80
  6. Step 6: Final answer
    x = 1,084,702.57

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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.