Home / 489,279.24-676,537.38-426,293.64

Finding the Fourth Proportional to 489,279.24, 676,537.38 and 426,293.64

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Solution

The fourth proportional to 489,279.24, 676,537.38 and 426,293.64 is: 589,445.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,279.24 : 676,537.38 = 426,293.64 : x
  2. Step 2: Convert to fraction form
    489,279.24/676,537.38 = 426,293.64/x
  3. Step 3: Cross multiply
    489,279.24x = 676,537.38 × 426,293.64
  4. Step 4: Simplify right side
    489,279.24x = 288,403,582,316.26
  5. Step 5: Solve for x
    x = 288,403,582,316.26/489,279.24
  6. Step 6: Final answer
    x = 589,445.78

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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.