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Finding the Fourth Proportional to 542,980.64, 814,712.88 and 210,582.56

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Solution

The fourth proportional to 542,980.64, 814,712.88 and 210,582.56 is: 315,967.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,980.64 : 814,712.88 = 210,582.56 : x
  2. Step 2: Convert to fraction form
    542,980.64/814,712.88 = 210,582.56/x
  3. Step 3: Cross multiply
    542,980.64x = 814,712.88 × 210,582.56
  4. Step 4: Simplify right side
    542,980.64x = 171,564,323,935.37
  5. Step 5: Solve for x
    x = 171,564,323,935.37/542,980.64
  6. Step 6: Final answer
    x = 315,967.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.