Home / 529,126.20-730,202.04-287,413.47

Finding the Fourth Proportional to 529,126.20, 730,202.04 and 287,413.47

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Solution

The fourth proportional to 529,126.20, 730,202.04 and 287,413.47 is: 396,634.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,126.20 : 730,202.04 = 287,413.47 : x
  2. Step 2: Convert to fraction form
    529,126.20/730,202.04 = 287,413.47/x
  3. Step 3: Cross multiply
    529,126.20x = 730,202.04 × 287,413.47
  4. Step 4: Simplify right side
    529,126.20x = 209,869,902,117.48
  5. Step 5: Solve for x
    x = 209,869,902,117.48/529,126.20
  6. Step 6: Final answer
    x = 396,634.87

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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.