Home / 498,717.02-749,182.80-309,317.42

Finding the Fourth Proportional to 498,717.02, 749,182.80 and 309,317.42

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Solution

The fourth proportional to 498,717.02, 749,182.80 and 309,317.42 is: 464,662.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,717.02 : 749,182.80 = 309,317.42 : x
  2. Step 2: Convert to fraction form
    498,717.02/749,182.80 = 309,317.42/x
  3. Step 3: Cross multiply
    498,717.02x = 749,182.80 × 309,317.42
  4. Step 4: Simplify right side
    498,717.02x = 231,735,287,058.46
  5. Step 5: Solve for x
    x = 231,735,287,058.46/498,717.02
  6. Step 6: Final answer
    x = 464,662.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.