Home / 529,178.22-730,279.49-287,474.63

Finding the Fourth Proportional to 529,178.22, 730,279.49 and 287,474.63

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Solution

The fourth proportional to 529,178.22, 730,279.49 and 287,474.63 is: 396,722.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,178.22 : 730,279.49 = 287,474.63 : x
  2. Step 2: Convert to fraction form
    529,178.22/730,279.49 = 287,474.63/x
  3. Step 3: Cross multiply
    529,178.22x = 730,279.49 × 287,474.63
  4. Step 4: Simplify right side
    529,178.22x = 209,936,821,095.57
  5. Step 5: Solve for x
    x = 209,936,821,095.57/529,178.22
  6. Step 6: Final answer
    x = 396,722.34

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1.5x scale

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.