Home / 657,738.59-983,757.29-387,222.08

Finding the Fourth Proportional to 657,738.59, 983,757.29 and 387,222.08

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Solution

The fourth proportional to 657,738.59, 983,757.29 and 387,222.08 is: 579,154.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,738.59 : 983,757.29 = 387,222.08 : x
  2. Step 2: Convert to fraction form
    657,738.59/983,757.29 = 387,222.08/x
  3. Step 3: Cross multiply
    657,738.59x = 983,757.29 × 387,222.08
  4. Step 4: Simplify right side
    657,738.59x = 380,932,537,194.07
  5. Step 5: Solve for x
    x = 380,932,537,194.07/657,738.59
  6. Step 6: Final answer
    x = 579,154.92

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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.