Home / 693,328.42-1,039,992.65-187,889.40

Finding the Fourth Proportional to 693,328.42, 1,039,992.65 and 187,889.40

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Solution

The fourth proportional to 693,328.42, 1,039,992.65 and 187,889.40 is: 281,834.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,328.42 : 1,039,992.65 = 187,889.40 : x
  2. Step 2: Convert to fraction form
    693,328.42/1,039,992.65 = 187,889.40/x
  3. Step 3: Cross multiply
    693,328.42x = 1,039,992.65 × 187,889.40
  4. Step 4: Simplify right side
    693,328.42x = 195,403,595,012.91
  5. Step 5: Solve for x
    x = 195,403,595,012.91/693,328.42
  6. Step 6: Final answer
    x = 281,834.11

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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.