Home / 780,489.12-1,170,484.53-247,885.57

Finding the Fourth Proportional to 780,489.12, 1,170,484.53 and 247,885.57

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Solution

The fourth proportional to 780,489.12, 1,170,484.53 and 247,885.57 is: 371,749.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,489.12 : 1,170,484.53 = 247,885.57 : x
  2. Step 2: Convert to fraction form
    780,489.12/1,170,484.53 = 247,885.57/x
  3. Step 3: Cross multiply
    780,489.12x = 1,170,484.53 × 247,885.57
  4. Step 4: Simplify right side
    780,489.12x = 290,146,224,895.23
  5. Step 5: Solve for x
    x = 290,146,224,895.23/780,489.12
  6. Step 6: Final answer
    x = 371,749.22

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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.