Home / 1,860,616.80-2,790,925.20-512,776.80

Finding the Fourth Proportional to 1,860,616.80, 2,790,925.20 and 512,776.80

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Solution

The fourth proportional to 1,860,616.80, 2,790,925.20 and 512,776.80 is: 769,165.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860,616.80 : 2,790,925.20 = 512,776.80 : x
  2. Step 2: Convert to fraction form
    1,860,616.80/2,790,925.20 = 512,776.80/x
  3. Step 3: Cross multiply
    1,860,616.80x = 2,790,925.20 × 512,776.80
  4. Step 4: Simplify right side
    1,860,616.80x = 1,431,121,693,095.36
  5. Step 5: Solve for x
    x = 1,431,121,693,095.36/1,860,616.80
  6. Step 6: Final answer
    x = 769,165.20

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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.