Home / 784,971.48-1,083,429.47-478,982.31

Finding the Fourth Proportional to 784,971.48, 1,083,429.47 and 478,982.31

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Solution

The fourth proportional to 784,971.48, 1,083,429.47 and 478,982.31 is: 661,098.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,971.48 : 1,083,429.47 = 478,982.31 : x
  2. Step 2: Convert to fraction form
    784,971.48/1,083,429.47 = 478,982.31/x
  3. Step 3: Cross multiply
    784,971.48x = 1,083,429.47 × 478,982.31
  4. Step 4: Simplify right side
    784,971.48x = 518,943,553,491.56
  5. Step 5: Solve for x
    x = 518,943,553,491.56/784,971.48
  6. Step 6: Final answer
    x = 661,098.61

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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.