Home / 684,432.45-1,026,306.05-211,056.30

Finding the Fourth Proportional to 684,432.45, 1,026,306.05 and 211,056.30

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Solution

The fourth proportional to 684,432.45, 1,026,306.05 and 211,056.30 is: 316,478.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,432.45 : 1,026,306.05 = 211,056.30 : x
  2. Step 2: Convert to fraction form
    684,432.45/1,026,306.05 = 211,056.30/x
  3. Step 3: Cross multiply
    684,432.45x = 1,026,306.05 × 211,056.30
  4. Step 4: Simplify right side
    684,432.45x = 216,608,356,525.33
  5. Step 5: Solve for x
    x = 216,608,356,525.33/684,432.45
  6. Step 6: Final answer
    x = 316,478.79

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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.