Home / 547,280.40-821,576.70-307,585.20

Finding the Fourth Proportional to 547,280.40, 821,576.70 and 307,585.20

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Solution

The fourth proportional to 547,280.40, 821,576.70 and 307,585.20 is: 461,746.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,280.40 : 821,576.70 = 307,585.20 : x
  2. Step 2: Convert to fraction form
    547,280.40/821,576.70 = 307,585.20/x
  3. Step 3: Cross multiply
    547,280.40x = 821,576.70 × 307,585.20
  4. Step 4: Simplify right side
    547,280.40x = 252,704,833,584.84
  5. Step 5: Solve for x
    x = 252,704,833,584.84/547,280.40
  6. Step 6: Final answer
    x = 461,746.54

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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.