Home / 770,002.49-1,155,118.59-320,467.41

Finding the Fourth Proportional to 770,002.49, 1,155,118.59 and 320,467.41

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Solution

The fourth proportional to 770,002.49, 1,155,118.59 and 320,467.41 is: 480,748.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,002.49 : 1,155,118.59 = 320,467.41 : x
  2. Step 2: Convert to fraction form
    770,002.49/1,155,118.59 = 320,467.41/x
  3. Step 3: Cross multiply
    770,002.49x = 1,155,118.59 × 320,467.41
  4. Step 4: Simplify right side
    770,002.49x = 370,177,862,780.15
  5. Step 5: Solve for x
    x = 370,177,862,780.15/770,002.49
  6. Step 6: Final answer
    x = 480,748.91

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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.