Home / 921,984.98-1,380,369.50-488,715.22

Finding the Fourth Proportional to 921,984.98, 1,380,369.50 and 488,715.22

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Solution

The fourth proportional to 921,984.98, 1,380,369.50 and 488,715.22 is: 731,690.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,984.98 : 1,380,369.50 = 488,715.22 : x
  2. Step 2: Convert to fraction form
    921,984.98/1,380,369.50 = 488,715.22/x
  3. Step 3: Cross multiply
    921,984.98x = 1,380,369.50 × 488,715.22
  4. Step 4: Simplify right side
    921,984.98x = 674,607,584,988.36
  5. Step 5: Solve for x
    x = 674,607,584,988.36/921,984.98
  6. Step 6: Final answer
    x = 731,690.43

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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.