Home / 818,422.29-1,129,479.53-496,145.97

Finding the Fourth Proportional to 818,422.29, 1,129,479.53 and 496,145.97

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Solution

The fourth proportional to 818,422.29, 1,129,479.53 and 496,145.97 is: 684,715.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,422.29 : 1,129,479.53 = 496,145.97 : x
  2. Step 2: Convert to fraction form
    818,422.29/1,129,479.53 = 496,145.97/x
  3. Step 3: Cross multiply
    818,422.29x = 1,129,479.53 × 496,145.97
  4. Step 4: Simplify right side
    818,422.29x = 560,386,714,526.26
  5. Step 5: Solve for x
    x = 560,386,714,526.26/818,422.29
  6. Step 6: Final answer
    x = 684,715.85

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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.