Home / 497,028.96-685,875.60-282,140.28

Finding the Fourth Proportional to 497,028.96, 685,875.60 and 282,140.28

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Solution

The fourth proportional to 497,028.96, 685,875.60 and 282,140.28 is: 389,339.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,028.96 : 685,875.60 = 282,140.28 : x
  2. Step 2: Convert to fraction form
    497,028.96/685,875.60 = 282,140.28/x
  3. Step 3: Cross multiply
    497,028.96x = 685,875.60 × 282,140.28
  4. Step 4: Simplify right side
    497,028.96x = 193,513,133,829.17
  5. Step 5: Solve for x
    x = 193,513,133,829.17/497,028.96
  6. Step 6: Final answer
    x = 389,339.76

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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.