Home / 489,978.02-676,152.18-275,127.14

Finding the Fourth Proportional to 489,978.02, 676,152.18 and 275,127.14

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Solution

The fourth proportional to 489,978.02, 676,152.18 and 275,127.14 is: 379,665.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,978.02 : 676,152.18 = 275,127.14 : x
  2. Step 2: Convert to fraction form
    489,978.02/676,152.18 = 275,127.14/x
  3. Step 3: Cross multiply
    489,978.02x = 676,152.18 × 275,127.14
  4. Step 4: Simplify right side
    489,978.02x = 186,027,815,488.17
  5. Step 5: Solve for x
    x = 186,027,815,488.17/489,978.02
  6. Step 6: Final answer
    x = 379,665.63

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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.