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Finding the Fourth Proportional to 579,709.30, 869,175.15 and 264,003.70

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Solution

The fourth proportional to 579,709.30, 869,175.15 and 264,003.70 is: 395,828.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,709.30 : 869,175.15 = 264,003.70 : x
  2. Step 2: Convert to fraction form
    579,709.30/869,175.15 = 264,003.70/x
  3. Step 3: Cross multiply
    579,709.30x = 869,175.15 × 264,003.70
  4. Step 4: Simplify right side
    579,709.30x = 229,465,455,548.06
  5. Step 5: Solve for x
    x = 229,465,455,548.06/579,709.30
  6. Step 6: Final answer
    x = 395,828.49

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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.