Home / 497,425.53-685,959.56-315,822.18

Finding the Fourth Proportional to 497,425.53, 685,959.56 and 315,822.18

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Solution

The fourth proportional to 497,425.53, 685,959.56 and 315,822.18 is: 435,524.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,425.53 : 685,959.56 = 315,822.18 : x
  2. Step 2: Convert to fraction form
    497,425.53/685,959.56 = 315,822.18/x
  3. Step 3: Cross multiply
    497,425.53x = 685,959.56 × 315,822.18
  4. Step 4: Simplify right side
    497,425.53x = 216,641,242,705.70
  5. Step 5: Solve for x
    x = 216,641,242,705.70/497,425.53
  6. Step 6: Final answer
    x = 435,524.98

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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.