Home / 854,150.85-1,178,696.75-491,630.49

Finding the Fourth Proportional to 854,150.85, 1,178,696.75 and 491,630.49

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Solution

The fourth proportional to 854,150.85, 1,178,696.75 and 491,630.49 is: 678,431.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,150.85 : 1,178,696.75 = 491,630.49 : x
  2. Step 2: Convert to fraction form
    854,150.85/1,178,696.75 = 491,630.49/x
  3. Step 3: Cross multiply
    854,150.85x = 1,178,696.75 × 491,630.49
  4. Step 4: Simplify right side
    854,150.85x = 579,483,258,305.76
  5. Step 5: Solve for x
    x = 579,483,258,305.76/854,150.85
  6. Step 6: Final answer
    x = 678,431.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.