Home / 767,824.42-1,151,244.54-318,855.20

Finding the Fourth Proportional to 767,824.42, 1,151,244.54 and 318,855.20

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Solution

The fourth proportional to 767,824.42, 1,151,244.54 and 318,855.20 is: 478,078.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,824.42 : 1,151,244.54 = 318,855.20 : x
  2. Step 2: Convert to fraction form
    767,824.42/1,151,244.54 = 318,855.20/x
  3. Step 3: Cross multiply
    767,824.42x = 1,151,244.54 × 318,855.20
  4. Step 4: Simplify right side
    767,824.42x = 367,080,308,050.61
  5. Step 5: Solve for x
    x = 367,080,308,050.61/767,824.42
  6. Step 6: Final answer
    x = 478,078.45

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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.