Home / 767,998.74-1,152,512.36-318,720.04

Finding the Fourth Proportional to 767,998.74, 1,152,512.36 and 318,720.04

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Solution

The fourth proportional to 767,998.74, 1,152,512.36 and 318,720.04 is: 478,293.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,998.74 : 1,152,512.36 = 318,720.04 : x
  2. Step 2: Convert to fraction form
    767,998.74/1,152,512.36 = 318,720.04/x
  3. Step 3: Cross multiply
    767,998.74x = 1,152,512.36 × 318,720.04
  4. Step 4: Simplify right side
    767,998.74x = 367,328,783,395.21
  5. Step 5: Solve for x
    x = 367,328,783,395.21/767,998.74
  6. Step 6: Final answer
    x = 478,293.47

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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.