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Finding the Fourth Proportional to 617,621.80, 925,050.30 and 507,029.80

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Solution

The fourth proportional to 617,621.80, 925,050.30 and 507,029.80 is: 759,409.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,621.80 : 925,050.30 = 507,029.80 : x
  2. Step 2: Convert to fraction form
    617,621.80/925,050.30 = 507,029.80/x
  3. Step 3: Cross multiply
    617,621.80x = 925,050.30 × 507,029.80
  4. Step 4: Simplify right side
    617,621.80x = 469,028,068,598.94
  5. Step 5: Solve for x
    x = 469,028,068,598.94/617,621.80
  6. Step 6: Final answer
    x = 759,409.83

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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.