Home / 874,922.40-1,312,383.60-725,623.20

Finding the Fourth Proportional to 874,922.40, 1,312,383.60 and 725,623.20

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Solution

The fourth proportional to 874,922.40, 1,312,383.60 and 725,623.20 is: 1,088,434.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,922.40 : 1,312,383.60 = 725,623.20 : x
  2. Step 2: Convert to fraction form
    874,922.40/1,312,383.60 = 725,623.20/x
  3. Step 3: Cross multiply
    874,922.40x = 1,312,383.60 × 725,623.20
  4. Step 4: Simplify right side
    874,922.40x = 952,295,987,459.52
  5. Step 5: Solve for x
    x = 952,295,987,459.52/874,922.40
  6. Step 6: Final answer
    x = 1,088,434.80

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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.