Home / 745,162.48-1,028,434.94-439,141.02

Finding the Fourth Proportional to 745,162.48, 1,028,434.94 and 439,141.02

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Solution

The fourth proportional to 745,162.48, 1,028,434.94 and 439,141.02 is: 606,079.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,162.48 : 1,028,434.94 = 439,141.02 : x
  2. Step 2: Convert to fraction form
    745,162.48/1,028,434.94 = 439,141.02/x
  3. Step 3: Cross multiply
    745,162.48x = 1,028,434.94 × 439,141.02
  4. Step 4: Simplify right side
    745,162.48x = 451,627,968,555.24
  5. Step 5: Solve for x
    x = 451,627,968,555.24/745,162.48
  6. Step 6: Final answer
    x = 606,079.86

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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.