Home / 657,740.09-983,759.54-387,223.58

Finding the Fourth Proportional to 657,740.09, 983,759.54 and 387,223.58

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Solution

The fourth proportional to 657,740.09, 983,759.54 and 387,223.58 is: 579,157.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,740.09 : 983,759.54 = 387,223.58 : x
  2. Step 2: Convert to fraction form
    657,740.09/983,759.54 = 387,223.58/x
  3. Step 3: Cross multiply
    657,740.09x = 983,759.54 × 387,223.58
  4. Step 4: Simplify right side
    657,740.09x = 380,934,884,083.04
  5. Step 5: Solve for x
    x = 380,934,884,083.04/657,740.09
  6. Step 6: Final answer
    x = 579,157.17

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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.