Home / 559,919.22-772,687.98-305,270.34

Finding the Fourth Proportional to 559,919.22, 772,687.98 and 305,270.34

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Solution

The fourth proportional to 559,919.22, 772,687.98 and 305,270.34 is: 421,272.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,919.22 : 772,687.98 = 305,270.34 : x
  2. Step 2: Convert to fraction form
    559,919.22/772,687.98 = 305,270.34/x
  3. Step 3: Cross multiply
    559,919.22x = 772,687.98 × 305,270.34
  4. Step 4: Simplify right side
    559,919.22x = 235,878,722,368.51
  5. Step 5: Solve for x
    x = 235,878,722,368.51/559,919.22
  6. Step 6: Final answer
    x = 421,272.77

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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.