Home / 543,320.72-749,768.80-298,304.28

Finding the Fourth Proportional to 543,320.72, 749,768.80 and 298,304.28

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Solution

The fourth proportional to 543,320.72, 749,768.80 and 298,304.28 is: 411,652.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,320.72 : 749,768.80 = 298,304.28 : x
  2. Step 2: Convert to fraction form
    543,320.72/749,768.80 = 298,304.28/x
  3. Step 3: Cross multiply
    543,320.72x = 749,768.80 × 298,304.28
  4. Step 4: Simplify right side
    543,320.72x = 223,659,242,050.46
  5. Step 5: Solve for x
    x = 223,659,242,050.46/543,320.72
  6. Step 6: Final answer
    x = 411,652.33

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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.