Home / 818,429.67-1,129,489.73-496,153.35

Finding the Fourth Proportional to 818,429.67, 1,129,489.73 and 496,153.35

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Solution

The fourth proportional to 818,429.67, 1,129,489.73 and 496,153.35 is: 684,726.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,429.67 : 1,129,489.73 = 496,153.35 : x
  2. Step 2: Convert to fraction form
    818,429.67/1,129,489.73 = 496,153.35/x
  3. Step 3: Cross multiply
    818,429.67x = 1,129,489.73 × 496,153.35
  4. Step 4: Simplify right side
    818,429.67x = 560,400,113,330.10
  5. Step 5: Solve for x
    x = 560,400,113,330.10/818,429.67
  6. Step 6: Final answer
    x = 684,726.05

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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.