Home / 529,702.66-730,986.04-287,985.23

Finding the Fourth Proportional to 529,702.66, 730,986.04 and 287,985.23

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Solution

The fourth proportional to 529,702.66, 730,986.04 and 287,985.23 is: 397,417.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,702.66 : 730,986.04 = 287,985.23 : x
  2. Step 2: Convert to fraction form
    529,702.66/730,986.04 = 287,985.23/x
  3. Step 3: Cross multiply
    529,702.66x = 730,986.04 × 287,985.23
  4. Step 4: Simplify right side
    529,702.66x = 210,513,178,481.30
  5. Step 5: Solve for x
    x = 210,513,178,481.30/529,702.66
  6. Step 6: Final answer
    x = 397,417.64

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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.