Home / 745,224.25-1,028,411.90-405,694.93

Finding the Fourth Proportional to 745,224.25, 1,028,411.90 and 405,694.93

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Solution

The fourth proportional to 745,224.25, 1,028,411.90 and 405,694.93 is: 559,860.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,224.25 : 1,028,411.90 = 405,694.93 : x
  2. Step 2: Convert to fraction form
    745,224.25/1,028,411.90 = 405,694.93/x
  3. Step 3: Cross multiply
    745,224.25x = 1,028,411.90 × 405,694.93
  4. Step 4: Simplify right side
    745,224.25x = 417,221,493,781.67
  5. Step 5: Solve for x
    x = 417,221,493,781.67/745,224.25
  6. Step 6: Final answer
    x = 559,860.33

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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.