Home / 489,938.90-676,092.83-272,161.69

Finding the Fourth Proportional to 489,938.90, 676,092.83 and 272,161.69

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Solution

The fourth proportional to 489,938.90, 676,092.83 and 272,161.69 is: 375,570.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,938.90 : 676,092.83 = 272,161.69 : x
  2. Step 2: Convert to fraction form
    489,938.90/676,092.83 = 272,161.69/x
  3. Step 3: Cross multiply
    489,938.90x = 676,092.83 × 272,161.69
  4. Step 4: Simplify right side
    489,938.90x = 184,006,566,199.86
  5. Step 5: Solve for x
    x = 184,006,566,199.86/489,938.90
  6. Step 6: Final answer
    x = 375,570.44

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1.5x scale

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.