Home / 726,356.80-1,089,535.20-558,200.80

Finding the Fourth Proportional to 726,356.80, 1,089,535.20 and 558,200.80

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Solution

The fourth proportional to 726,356.80, 1,089,535.20 and 558,200.80 is: 837,301.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,356.80 : 1,089,535.20 = 558,200.80 : x
  2. Step 2: Convert to fraction form
    726,356.80/1,089,535.20 = 558,200.80/x
  3. Step 3: Cross multiply
    726,356.80x = 1,089,535.20 × 558,200.80
  4. Step 4: Simplify right side
    726,356.80x = 608,179,420,268.16
  5. Step 5: Solve for x
    x = 608,179,420,268.16/726,356.80
  6. Step 6: Final answer
    x = 837,301.20

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Double scale
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Similar ratio
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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.