Home / 780,011.08-1,170,191.94-247,549.48

Finding the Fourth Proportional to 780,011.08, 1,170,191.94 and 247,549.48

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Solution

The fourth proportional to 780,011.08, 1,170,191.94 and 247,549.48 is: 371,379.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,011.08 : 1,170,191.94 = 247,549.48 : x
  2. Step 2: Convert to fraction form
    780,011.08/1,170,191.94 = 247,549.48/x
  3. Step 3: Cross multiply
    780,011.08x = 1,170,191.94 × 247,549.48
  4. Step 4: Simplify right side
    780,011.08x = 289,680,406,247.19
  5. Step 5: Solve for x
    x = 289,680,406,247.19/780,011.08
  6. Step 6: Final answer
    x = 371,379.86

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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.