Home / 519,880.20-779,820.30-295,153.80

Finding the Fourth Proportional to 519,880.20, 779,820.30 and 295,153.80

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Solution

The fourth proportional to 519,880.20, 779,820.30 and 295,153.80 is: 442,730.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,880.20 : 779,820.30 = 295,153.80 : x
  2. Step 2: Convert to fraction form
    519,880.20/779,820.30 = 295,153.80/x
  3. Step 3: Cross multiply
    519,880.20x = 779,820.30 × 295,153.80
  4. Step 4: Simplify right side
    519,880.20x = 230,166,924,862.14
  5. Step 5: Solve for x
    x = 230,166,924,862.14/519,880.20
  6. Step 6: Final answer
    x = 442,730.70

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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.