Home / 818,429.80-1,129,489.90-496,153.48

Finding the Fourth Proportional to 818,429.80, 1,129,489.90 and 496,153.48

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Solution

The fourth proportional to 818,429.80, 1,129,489.90 and 496,153.48 is: 684,726.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,429.80 : 1,129,489.90 = 496,153.48 : x
  2. Step 2: Convert to fraction form
    818,429.80/1,129,489.90 = 496,153.48/x
  3. Step 3: Cross multiply
    818,429.80x = 1,129,489.90 × 496,153.48
  4. Step 4: Simplify right side
    818,429.80x = 560,400,344,509.85
  5. Step 5: Solve for x
    x = 560,400,344,509.85/818,429.80
  6. Step 6: Final answer
    x = 684,726.22

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1.5x scale

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.