Home / 497,055.32-685,955.76-282,215.40

Finding the Fourth Proportional to 497,055.32, 685,955.76 and 282,215.40

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Solution

The fourth proportional to 497,055.32, 685,955.76 and 282,215.40 is: 389,468.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,055.32 : 685,955.76 = 282,215.40 : x
  2. Step 2: Convert to fraction form
    497,055.32/685,955.76 = 282,215.40/x
  3. Step 3: Cross multiply
    497,055.32x = 685,955.76 × 282,215.40
  4. Step 4: Simplify right side
    497,055.32x = 193,587,279,190.70
  5. Step 5: Solve for x
    x = 193,587,279,190.70/497,055.32
  6. Step 6: Final answer
    x = 389,468.28

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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.