Home / 529,145.07-730,233.37-287,427.57

Finding the Fourth Proportional to 529,145.07, 730,233.37 and 287,427.57

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Solution

The fourth proportional to 529,145.07, 730,233.37 and 287,427.57 is: 396,657.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,145.07 : 730,233.37 = 287,427.57 : x
  2. Step 2: Convert to fraction form
    529,145.07/730,233.37 = 287,427.57/x
  3. Step 3: Cross multiply
    529,145.07x = 730,233.37 × 287,427.57
  4. Step 4: Simplify right side
    529,145.07x = 209,889,199,809.29
  5. Step 5: Solve for x
    x = 209,889,199,809.29/529,145.07
  6. Step 6: Final answer
    x = 396,657.20

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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.