Home / 420,372.32-630,551.84-195,607.04

Finding the Fourth Proportional to 420,372.32, 630,551.84 and 195,607.04

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Solution

The fourth proportional to 420,372.32, 630,551.84 and 195,607.04 is: 293,407.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,372.32 : 630,551.84 = 195,607.04 : x
  2. Step 2: Convert to fraction form
    420,372.32/630,551.84 = 195,607.04/x
  3. Step 3: Cross multiply
    420,372.32x = 630,551.84 × 195,607.04
  4. Step 4: Simplify right side
    420,372.32x = 123,340,378,988.95
  5. Step 5: Solve for x
    x = 123,340,378,988.95/420,372.32
  6. Step 6: Final answer
    x = 293,407.47

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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.