Home / 903,276.81-1,246,432.19-521,426.61

Finding the Fourth Proportional to 903,276.81, 1,246,432.19 and 521,426.61

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Solution

The fourth proportional to 903,276.81, 1,246,432.19 and 521,426.61 is: 719,516.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,276.81 : 1,246,432.19 = 521,426.61 : x
  2. Step 2: Convert to fraction form
    903,276.81/1,246,432.19 = 521,426.61/x
  3. Step 3: Cross multiply
    903,276.81x = 1,246,432.19 × 521,426.61
  4. Step 4: Simplify right side
    903,276.81x = 649,922,908,819.44
  5. Step 5: Solve for x
    x = 649,922,908,819.44/903,276.81
  6. Step 6: Final answer
    x = 719,516.88

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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.