Home / 992,612.88-1,488,729.36-385,401.18

Finding the Fourth Proportional to 992,612.88, 1,488,729.36 and 385,401.18

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Solution

The fourth proportional to 992,612.88, 1,488,729.36 and 385,401.18 is: 578,028.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,612.88 : 1,488,729.36 = 385,401.18 : x
  2. Step 2: Convert to fraction form
    992,612.88/1,488,729.36 = 385,401.18/x
  3. Step 3: Cross multiply
    992,612.88x = 1,488,729.36 × 385,401.18
  4. Step 4: Simplify right side
    992,612.88x = 573,758,052,044.65
  5. Step 5: Solve for x
    x = 573,758,052,044.65/992,612.88
  6. Step 6: Final answer
    x = 578,028.01

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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.