Home / 380,413.72-524,964.52-210,644.20

Finding the Fourth Proportional to 380,413.72, 524,964.52 and 210,644.20

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Solution

The fourth proportional to 380,413.72, 524,964.52 and 210,644.20 is: 290,685.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,413.72 : 524,964.52 = 210,644.20 : x
  2. Step 2: Convert to fraction form
    380,413.72/524,964.52 = 210,644.20/x
  3. Step 3: Cross multiply
    380,413.72x = 524,964.52 × 210,644.20
  4. Step 4: Simplify right side
    380,413.72x = 110,580,731,343.78
  5. Step 5: Solve for x
    x = 110,580,731,343.78/380,413.72
  6. Step 6: Final answer
    x = 290,685.44

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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.