Home / 467,432.40-645,188.84-276,512.16

Finding the Fourth Proportional to 467,432.40, 645,188.84 and 276,512.16

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Solution

The fourth proportional to 467,432.40, 645,188.84 and 276,512.16 is: 381,664.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,432.40 : 645,188.84 = 276,512.16 : x
  2. Step 2: Convert to fraction form
    467,432.40/645,188.84 = 276,512.16/x
  3. Step 3: Cross multiply
    467,432.40x = 645,188.84 × 276,512.16
  4. Step 4: Simplify right side
    467,432.40x = 178,402,559,756.29
  5. Step 5: Solve for x
    x = 178,402,559,756.29/467,432.40
  6. Step 6: Final answer
    x = 381,664.94

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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.