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Finding the Fourth Proportional to 575,371.30, 793,995.87 and 320,717.02

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Solution

The fourth proportional to 575,371.30, 793,995.87 and 320,717.02 is: 442,580.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,371.30 : 793,995.87 = 320,717.02 : x
  2. Step 2: Convert to fraction form
    575,371.30/793,995.87 = 320,717.02/x
  3. Step 3: Cross multiply
    575,371.30x = 793,995.87 × 320,717.02
  4. Step 4: Simplify right side
    575,371.30x = 254,647,989,318.71
  5. Step 5: Solve for x
    x = 254,647,989,318.71/575,371.30
  6. Step 6: Final answer
    x = 442,580.28

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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.