Home / 745,224.29-1,028,543.63-439,282.50

Finding the Fourth Proportional to 745,224.29, 1,028,543.63 and 439,282.50

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Solution

The fourth proportional to 745,224.29, 1,028,543.63 and 439,282.50 is: 606,288.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,224.29 : 1,028,543.63 = 439,282.50 : x
  2. Step 2: Convert to fraction form
    745,224.29/1,028,543.63 = 439,282.50/x
  3. Step 3: Cross multiply
    745,224.29x = 1,028,543.63 × 439,282.50
  4. Step 4: Simplify right side
    745,224.29x = 451,821,217,145.48
  5. Step 5: Solve for x
    x = 451,821,217,145.48/745,224.29
  6. Step 6: Final answer
    x = 606,288.90

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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.