Home / 645,877.46-968,187.74-308,830.70

Finding the Fourth Proportional to 645,877.46, 968,187.74 and 308,830.70

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Solution

The fourth proportional to 645,877.46, 968,187.74 and 308,830.70 is: 462,945.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,877.46 : 968,187.74 = 308,830.70 : x
  2. Step 2: Convert to fraction form
    645,877.46/968,187.74 = 308,830.70/x
  3. Step 3: Cross multiply
    645,877.46x = 968,187.74 × 308,830.70
  4. Step 4: Simplify right side
    645,877.46x = 299,006,091,090.53
  5. Step 5: Solve for x
    x = 299,006,091,090.53/645,877.46
  6. Step 6: Final answer
    x = 462,945.55

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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.