Home / 745,429.29-1,028,664.35-455,525.61

Finding the Fourth Proportional to 745,429.29, 1,028,664.35 and 455,525.61

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Solution

The fourth proportional to 745,429.29, 1,028,664.35 and 455,525.61 is: 628,608.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,429.29 : 1,028,664.35 = 455,525.61 : x
  2. Step 2: Convert to fraction form
    745,429.29/1,028,664.35 = 455,525.61/x
  3. Step 3: Cross multiply
    745,429.29x = 1,028,664.35 × 455,525.61
  4. Step 4: Simplify right side
    745,429.29x = 468,582,955,519.00
  5. Step 5: Solve for x
    x = 468,582,955,519.00/745,429.29
  6. Step 6: Final answer
    x = 628,608.19

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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.