Home / 657,943.23-907,964.53-356,137.23

Finding the Fourth Proportional to 657,943.23, 907,964.53 and 356,137.23

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Solution

The fourth proportional to 657,943.23, 907,964.53 and 356,137.23 is: 491,470.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,943.23 : 907,964.53 = 356,137.23 : x
  2. Step 2: Convert to fraction form
    657,943.23/907,964.53 = 356,137.23/x
  3. Step 3: Cross multiply
    657,943.23x = 907,964.53 × 356,137.23
  4. Step 4: Simplify right side
    657,943.23x = 323,359,971,762.11
  5. Step 5: Solve for x
    x = 323,359,971,762.11/657,943.23
  6. Step 6: Final answer
    x = 491,470.93

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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.