Home / 767,875.03-1,151,320.44-318,905.80

Finding the Fourth Proportional to 767,875.03, 1,151,320.44 and 318,905.80

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Solution

The fourth proportional to 767,875.03, 1,151,320.44 and 318,905.80 is: 478,154.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,875.03 : 1,151,320.44 = 318,905.80 : x
  2. Step 2: Convert to fraction form
    767,875.03/1,151,320.44 = 318,905.80/x
  3. Step 3: Cross multiply
    767,875.03x = 1,151,320.44 × 318,905.80
  4. Step 4: Simplify right side
    767,875.03x = 367,162,765,974.55
  5. Step 5: Solve for x
    x = 367,162,765,974.55/767,875.03
  6. Step 6: Final answer
    x = 478,154.32

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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.