Home / 877,512.75-1,316,269.13-212,664.75

Finding the Fourth Proportional to 877,512.75, 1,316,269.13 and 212,664.75

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Solution

The fourth proportional to 877,512.75, 1,316,269.13 and 212,664.75 is: 318,997.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,512.75 : 1,316,269.13 = 212,664.75 : x
  2. Step 2: Convert to fraction form
    877,512.75/1,316,269.13 = 212,664.75/x
  3. Step 3: Cross multiply
    877,512.75x = 1,316,269.13 × 212,664.75
  4. Step 4: Simplify right side
    877,512.75x = 279,924,044,400.84
  5. Step 5: Solve for x
    x = 279,924,044,400.84/877,512.75
  6. Step 6: Final answer
    x = 318,997.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.