Home / 528,112.21-728,782.01-301,743.13

Finding the Fourth Proportional to 528,112.21, 728,782.01 and 301,743.13

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Solution

The fourth proportional to 528,112.21, 728,782.01 and 301,743.13 is: 416,398.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,112.21 : 728,782.01 = 301,743.13 : x
  2. Step 2: Convert to fraction form
    528,112.21/728,782.01 = 301,743.13/x
  3. Step 3: Cross multiply
    528,112.21x = 728,782.01 × 301,743.13
  4. Step 4: Simplify right side
    528,112.21x = 219,904,961,141.18
  5. Step 5: Solve for x
    x = 219,904,961,141.18/528,112.21
  6. Step 6: Final answer
    x = 416,398.18

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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.