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Finding the Fourth Proportional to 572,628, 858,675.36 and 212,548.32

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Solution

The fourth proportional to 572,628, 858,675.36 and 212,548.32 is: 318,723.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,628 : 858,675.36 = 212,548.32 : x
  2. Step 2: Convert to fraction form
    572,628/858,675.36 = 212,548.32/x
  3. Step 3: Cross multiply
    572,628x = 858,675.36 × 212,548.32
  4. Step 4: Simplify right side
    572,628x = 182,510,005,193.40
  5. Step 5: Solve for x
    x = 182,510,005,193.40/572,628
  6. Step 6: Final answer
    x = 318,723.51

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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.