Home / 420,570.20-630,699.44-150,656.27

Finding the Fourth Proportional to 420,570.20, 630,699.44 and 150,656.27

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Solution

The fourth proportional to 420,570.20, 630,699.44 and 150,656.27 is: 225,928.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,570.20 : 630,699.44 = 150,656.27 : x
  2. Step 2: Convert to fraction form
    420,570.20/630,699.44 = 150,656.27/x
  3. Step 3: Cross multiply
    420,570.20x = 630,699.44 × 150,656.27
  4. Step 4: Simplify right side
    420,570.20x = 95,018,821,214.71
  5. Step 5: Solve for x
    x = 95,018,821,214.71/420,570.20
  6. Step 6: Final answer
    x = 225,928.57

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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.