Home / 645,871.46-968,178.74-308,824.70

Finding the Fourth Proportional to 645,871.46, 968,178.74 and 308,824.70

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Solution

The fourth proportional to 645,871.46, 968,178.74 and 308,824.70 is: 462,936.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,871.46 : 968,178.74 = 308,824.70 : x
  2. Step 2: Convert to fraction form
    645,871.46/968,178.74 = 308,824.70/x
  3. Step 3: Cross multiply
    645,871.46x = 968,178.74 × 308,824.70
  4. Step 4: Simplify right side
    645,871.46x = 298,997,502,541.86
  5. Step 5: Solve for x
    x = 298,997,502,541.86/645,871.46
  6. Step 6: Final answer
    x = 462,936.55

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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.