Home / 529,271.20-730,381.62-287,548.30

Finding the Fourth Proportional to 529,271.20, 730,381.62 and 287,548.30

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Solution

The fourth proportional to 529,271.20, 730,381.62 and 287,548.30 is: 396,809.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,271.20 : 730,381.62 = 287,548.30 : x
  2. Step 2: Convert to fraction form
    529,271.20/730,381.62 = 287,548.30/x
  3. Step 3: Cross multiply
    529,271.20x = 730,381.62 × 287,548.30
  4. Step 4: Simplify right side
    529,271.20x = 210,019,993,182.25
  5. Step 5: Solve for x
    x = 210,019,993,182.25/529,271.20
  6. Step 6: Final answer
    x = 396,809.79

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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.