Home / 529,702.41-730,985.69-287,984.98

Finding the Fourth Proportional to 529,702.41, 730,985.69 and 287,984.98

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Solution

The fourth proportional to 529,702.41, 730,985.69 and 287,984.98 is: 397,417.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,702.41 : 730,985.69 = 287,984.98 : x
  2. Step 2: Convert to fraction form
    529,702.41/730,985.69 = 287,984.98/x
  3. Step 3: Cross multiply
    529,702.41x = 730,985.69 × 287,984.98
  4. Step 4: Simplify right side
    529,702.41x = 210,512,895,660.01
  5. Step 5: Solve for x
    x = 210,512,895,660.01/529,702.41
  6. Step 6: Final answer
    x = 397,417.29

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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.