Home / 529,305.14-730,444.09-287,589.67

Finding the Fourth Proportional to 529,305.14, 730,444.09 and 287,589.67

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Solution

The fourth proportional to 529,305.14, 730,444.09 and 287,589.67 is: 396,875.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,305.14 : 730,444.09 = 287,589.67 : x
  2. Step 2: Convert to fraction form
    529,305.14/730,444.09 = 287,589.67/x
  3. Step 3: Cross multiply
    529,305.14x = 730,444.09 × 287,589.67
  4. Step 4: Simplify right side
    529,305.14x = 210,068,174,796.55
  5. Step 5: Solve for x
    x = 210,068,174,796.55/529,305.14
  6. Step 6: Final answer
    x = 396,875.37

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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.