Home / 854,279.42-1,178,566.52-491,508.05

Finding the Fourth Proportional to 854,279.42, 1,178,566.52 and 491,508.05

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Solution

The fourth proportional to 854,279.42, 1,178,566.52 and 491,508.05 is: 678,086.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,279.42 : 1,178,566.52 = 491,508.05 : x
  2. Step 2: Convert to fraction form
    854,279.42/1,178,566.52 = 491,508.05/x
  3. Step 3: Cross multiply
    854,279.42x = 1,178,566.52 × 491,508.05
  4. Step 4: Simplify right side
    854,279.42x = 579,274,923,690.11
  5. Step 5: Solve for x
    x = 579,274,923,690.11/854,279.42
  6. Step 6: Final answer
    x = 678,086.01

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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.