Home / 612,227.70-917,576.10-312,827.40

Finding the Fourth Proportional to 612,227.70, 917,576.10 and 312,827.40

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Solution

The fourth proportional to 612,227.70, 917,576.10 and 312,827.40 is: 468,849.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,227.70 : 917,576.10 = 312,827.40 : x
  2. Step 2: Convert to fraction form
    612,227.70/917,576.10 = 312,827.40/x
  3. Step 3: Cross multiply
    612,227.70x = 917,576.10 × 312,827.40
  4. Step 4: Simplify right side
    612,227.70x = 287,042,945,665.14
  5. Step 5: Solve for x
    x = 287,042,945,665.14/612,227.70
  6. Step 6: Final answer
    x = 468,849.98

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1.5x scale

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.