Home / 769,612.20-1,154,418.30-749,929.20

Finding the Fourth Proportional to 769,612.20, 1,154,418.30 and 749,929.20

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Solution

The fourth proportional to 769,612.20, 1,154,418.30 and 749,929.20 is: 1,124,893.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,612.20 : 1,154,418.30 = 749,929.20 : x
  2. Step 2: Convert to fraction form
    769,612.20/1,154,418.30 = 749,929.20/x
  3. Step 3: Cross multiply
    769,612.20x = 1,154,418.30 × 749,929.20
  4. Step 4: Simplify right side
    769,612.20x = 865,731,992,184.36
  5. Step 5: Solve for x
    x = 865,731,992,184.36/769,612.20
  6. Step 6: Final answer
    x = 1,124,893.80

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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.