Home / 499,403.82-749,127.59-144,453.72

Finding the Fourth Proportional to 499,403.82, 749,127.59 and 144,453.72

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Solution

The fourth proportional to 499,403.82, 749,127.59 and 144,453.72 is: 216,686.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,403.82 : 749,127.59 = 144,453.72 : x
  2. Step 2: Convert to fraction form
    499,403.82/749,127.59 = 144,453.72/x
  3. Step 3: Cross multiply
    499,403.82x = 749,127.59 × 144,453.72
  4. Step 4: Simplify right side
    499,403.82x = 108,214,267,130.14
  5. Step 5: Solve for x
    x = 108,214,267,130.14/499,403.82
  6. Step 6: Final answer
    x = 216,686.90

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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.