Home / 529,685.16-730,979.94-287,983.98

Finding the Fourth Proportional to 529,685.16, 730,979.94 and 287,983.98

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Solution

The fourth proportional to 529,685.16, 730,979.94 and 287,983.98 is: 397,425.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,685.16 : 730,979.94 = 287,983.98 : x
  2. Step 2: Convert to fraction form
    529,685.16/730,979.94 = 287,983.98/x
  3. Step 3: Cross multiply
    529,685.16x = 730,979.94 × 287,983.98
  4. Step 4: Simplify right side
    529,685.16x = 210,510,512,421.36
  5. Step 5: Solve for x
    x = 210,510,512,421.36/529,685.16
  6. Step 6: Final answer
    x = 397,425.73

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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.