Home / 818,320.88-1,227,405.58-385,939.19

Finding the Fourth Proportional to 818,320.88, 1,227,405.58 and 385,939.19

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Solution

The fourth proportional to 818,320.88, 1,227,405.58 and 385,939.19 is: 578,873.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,320.88 : 1,227,405.58 = 385,939.19 : x
  2. Step 2: Convert to fraction form
    818,320.88/1,227,405.58 = 385,939.19/x
  3. Step 3: Cross multiply
    818,320.88x = 1,227,405.58 × 385,939.19
  4. Step 4: Simplify right side
    818,320.88x = 473,703,908,244.80
  5. Step 5: Solve for x
    x = 473,703,908,244.80/818,320.88
  6. Step 6: Final answer
    x = 578,873.06

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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.