Home / 642,014.81-885,333.14-469,960.79

Finding the Fourth Proportional to 642,014.81, 885,333.14 and 469,960.79

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Solution

The fourth proportional to 642,014.81, 885,333.14 and 469,960.79 is: 648,072.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,014.81 : 885,333.14 = 469,960.79 : x
  2. Step 2: Convert to fraction form
    642,014.81/885,333.14 = 469,960.79/x
  3. Step 3: Cross multiply
    642,014.81x = 885,333.14 × 469,960.79
  4. Step 4: Simplify right side
    642,014.81x = 416,071,856,873.46
  5. Step 5: Solve for x
    x = 416,071,856,873.46/642,014.81
  6. Step 6: Final answer
    x = 648,072.06

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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.