Home / 818,429.82-1,129,489.86-496,153.50

Finding the Fourth Proportional to 818,429.82, 1,129,489.86 and 496,153.50

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Solution

The fourth proportional to 818,429.82, 1,129,489.86 and 496,153.50 is: 684,726.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,429.82 : 1,129,489.86 = 496,153.50 : x
  2. Step 2: Convert to fraction form
    818,429.82/1,129,489.86 = 496,153.50/x
  3. Step 3: Cross multiply
    818,429.82x = 1,129,489.86 × 496,153.50
  4. Step 4: Simplify right side
    818,429.82x = 560,400,347,253.51
  5. Step 5: Solve for x
    x = 560,400,347,253.51/818,429.82
  6. Step 6: Final answer
    x = 684,726.21

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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.