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Finding the Fourth Proportional to 570,010.72, 854,990.88 and 149,277.28

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Solution

The fourth proportional to 570,010.72, 854,990.88 and 149,277.28 is: 223,909.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,010.72 : 854,990.88 = 149,277.28 : x
  2. Step 2: Convert to fraction form
    570,010.72/854,990.88 = 149,277.28/x
  3. Step 3: Cross multiply
    570,010.72x = 854,990.88 × 149,277.28
  4. Step 4: Simplify right side
    570,010.72x = 127,630,712,991.21
  5. Step 5: Solve for x
    x = 127,630,712,991.21/570,010.72
  6. Step 6: Final answer
    x = 223,909.32

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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.