Home / 720,457.86-1,080,563.78-240,619.26

Finding the Fourth Proportional to 720,457.86, 1,080,563.78 and 240,619.26

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Solution

The fourth proportional to 720,457.86, 1,080,563.78 and 240,619.26 is: 360,887.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,457.86 : 1,080,563.78 = 240,619.26 : x
  2. Step 2: Convert to fraction form
    720,457.86/1,080,563.78 = 240,619.26/x
  3. Step 3: Cross multiply
    720,457.86x = 1,080,563.78 × 240,619.26
  4. Step 4: Simplify right side
    720,457.86x = 260,004,457,126.40
  5. Step 5: Solve for x
    x = 260,004,457,126.40/720,457.86
  6. Step 6: Final answer
    x = 360,887.81

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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.