Home / 745,224.75-1,028,412.59-405,695.43

Finding the Fourth Proportional to 745,224.75, 1,028,412.59 and 405,695.43

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Solution

The fourth proportional to 745,224.75, 1,028,412.59 and 405,695.43 is: 559,861.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,224.75 : 1,028,412.59 = 405,695.43 : x
  2. Step 2: Convert to fraction form
    745,224.75/1,028,412.59 = 405,695.43/x
  3. Step 3: Cross multiply
    745,224.75x = 1,028,412.59 × 405,695.43
  4. Step 4: Simplify right side
    745,224.75x = 417,222,285,888.99
  5. Step 5: Solve for x
    x = 417,222,285,888.99/745,224.75
  6. Step 6: Final answer
    x = 559,861.02

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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.