Home / 724,593.60-1,084,816.80-641,649.60

Finding the Fourth Proportional to 724,593.60, 1,084,816.80 and 641,649.60

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Solution

The fourth proportional to 724,593.60, 1,084,816.80 and 641,649.60 is: 960,638.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,593.60 : 1,084,816.80 = 641,649.60 : x
  2. Step 2: Convert to fraction form
    724,593.60/1,084,816.80 = 641,649.60/x
  3. Step 3: Cross multiply
    724,593.60x = 1,084,816.80 × 641,649.60
  4. Step 4: Simplify right side
    724,593.60x = 696,072,265,793.28
  5. Step 5: Solve for x
    x = 696,072,265,793.28/724,593.60
  6. Step 6: Final answer
    x = 960,638.16

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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.