Home / 657,989.07-907,970.24-386,028.51

Finding the Fourth Proportional to 657,989.07, 907,970.24 and 386,028.51

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Solution

The fourth proportional to 657,989.07, 907,970.24 and 386,028.51 is: 532,687.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,989.07 : 907,970.24 = 386,028.51 : x
  2. Step 2: Convert to fraction form
    657,989.07/907,970.24 = 386,028.51/x
  3. Step 3: Cross multiply
    657,989.07x = 907,970.24 × 386,028.51
  4. Step 4: Simplify right side
    657,989.07x = 350,502,396,941.40
  5. Step 5: Solve for x
    x = 350,502,396,941.40/657,989.07
  6. Step 6: Final answer
    x = 532,687.26

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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.