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Finding the Fourth Proportional to 854,170.80, 1,178,705.04 and 472,174.80

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Solution

The fourth proportional to 854,170.80, 1,178,705.04 and 472,174.80 is: 651,573.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,170.80 : 1,178,705.04 = 472,174.80 : x
  2. Step 2: Convert to fraction form
    854,170.80/1,178,705.04 = 472,174.80/x
  3. Step 3: Cross multiply
    854,170.80x = 1,178,705.04 × 472,174.80
  4. Step 4: Simplify right side
    854,170.80x = 556,554,816,520.99
  5. Step 5: Solve for x
    x = 556,554,816,520.99/854,170.80
  6. Step 6: Final answer
    x = 651,573.22

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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.