Home / 499,406.19-749,642.36-215,236.98

Finding the Fourth Proportional to 499,406.19, 749,642.36 and 215,236.98

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Solution

The fourth proportional to 499,406.19, 749,642.36 and 215,236.98 is: 323,085.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,406.19 : 749,642.36 = 215,236.98 : x
  2. Step 2: Convert to fraction form
    499,406.19/749,642.36 = 215,236.98/x
  3. Step 3: Cross multiply
    499,406.19x = 749,642.36 × 215,236.98
  4. Step 4: Simplify right side
    499,406.19x = 161,350,756,570.29
  5. Step 5: Solve for x
    x = 161,350,756,570.29/499,406.19
  6. Step 6: Final answer
    x = 323,085.22

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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.