Home / 745,250.88-1,028,457.36-405,724.80

Finding the Fourth Proportional to 745,250.88, 1,028,457.36 and 405,724.80

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Solution

The fourth proportional to 745,250.88, 1,028,457.36 and 405,724.80 is: 559,906.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,250.88 : 1,028,457.36 = 405,724.80 : x
  2. Step 2: Convert to fraction form
    745,250.88/1,028,457.36 = 405,724.80/x
  3. Step 3: Cross multiply
    745,250.88x = 1,028,457.36 × 405,724.80
  4. Step 4: Simplify right side
    745,250.88x = 417,270,656,694.53
  5. Step 5: Solve for x
    x = 417,270,656,694.53/745,250.88
  6. Step 6: Final answer
    x = 559,906.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.