Home / 529,678.48-730,970.45-287,977.33

Finding the Fourth Proportional to 529,678.48, 730,970.45 and 287,977.33

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Solution

The fourth proportional to 529,678.48, 730,970.45 and 287,977.33 is: 397,416.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,678.48 : 730,970.45 = 287,977.33 : x
  2. Step 2: Convert to fraction form
    529,678.48/730,970.45 = 287,977.33/x
  3. Step 3: Cross multiply
    529,678.48x = 730,970.45 × 287,977.33
  4. Step 4: Simplify right side
    529,678.48x = 210,502,918,499.90
  5. Step 5: Solve for x
    x = 210,502,918,499.90/529,678.48
  6. Step 6: Final answer
    x = 397,416.41

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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.