Home / 745,768.43-1,029,127.21-435,699.78

Finding the Fourth Proportional to 745,768.43, 1,029,127.21 and 435,699.78

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Solution

The fourth proportional to 745,768.43, 1,029,127.21 and 435,699.78 is: 601,246.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,768.43 : 1,029,127.21 = 435,699.78 : x
  2. Step 2: Convert to fraction form
    745,768.43/1,029,127.21 = 435,699.78/x
  3. Step 3: Cross multiply
    745,768.43x = 1,029,127.21 × 435,699.78
  4. Step 4: Simplify right side
    745,768.43x = 448,390,504,561.93
  5. Step 5: Solve for x
    x = 448,390,504,561.93/745,768.43
  6. Step 6: Final answer
    x = 601,246.29

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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.