Home / 780,146.68-1,170,260.54-247,709.40

Finding the Fourth Proportional to 780,146.68, 1,170,260.54 and 247,709.40

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Solution

The fourth proportional to 780,146.68, 1,170,260.54 and 247,709.40 is: 371,576.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,146.68 : 1,170,260.54 = 247,709.40 : x
  2. Step 2: Convert to fraction form
    780,146.68/1,170,260.54 = 247,709.40/x
  3. Step 3: Cross multiply
    780,146.68x = 1,170,260.54 × 247,709.40
  4. Step 4: Simplify right side
    780,146.68x = 289,884,536,207.08
  5. Step 5: Solve for x
    x = 289,884,536,207.08/780,146.68
  6. Step 6: Final answer
    x = 371,576.97

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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.