Home / 745,162.98-1,028,435.63-439,141.52

Finding the Fourth Proportional to 745,162.98, 1,028,435.63 and 439,141.52

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Solution

The fourth proportional to 745,162.98, 1,028,435.63 and 439,141.52 is: 606,080.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,162.98 : 1,028,435.63 = 439,141.52 : x
  2. Step 2: Convert to fraction form
    745,162.98/1,028,435.63 = 439,141.52/x
  3. Step 3: Cross multiply
    745,162.98x = 1,028,435.63 × 439,141.52
  4. Step 4: Simplify right side
    745,162.98x = 451,628,778,442.47
  5. Step 5: Solve for x
    x = 451,628,778,442.47/745,162.98
  6. Step 6: Final answer
    x = 606,080.54

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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.