Home / 507,128.45-699,884.21-280,773.95

Finding the Fourth Proportional to 507,128.45, 699,884.21 and 280,773.95

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Solution

The fourth proportional to 507,128.45, 699,884.21 and 280,773.95 is: 387,494.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,128.45 : 699,884.21 = 280,773.95 : x
  2. Step 2: Convert to fraction form
    507,128.45/699,884.21 = 280,773.95/x
  3. Step 3: Cross multiply
    507,128.45x = 699,884.21 × 280,773.95
  4. Step 4: Simplify right side
    507,128.45x = 196,509,254,184.33
  5. Step 5: Solve for x
    x = 196,509,254,184.33/507,128.45
  6. Step 6: Final answer
    x = 387,494.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.