Home / 465,277.10-642,006.90-290,826.67

Finding the Fourth Proportional to 465,277.10, 642,006.90 and 290,826.67

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Solution

The fourth proportional to 465,277.10, 642,006.90 and 290,826.67 is: 401,293.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,277.10 : 642,006.90 = 290,826.67 : x
  2. Step 2: Convert to fraction form
    465,277.10/642,006.90 = 290,826.67/x
  3. Step 3: Cross multiply
    465,277.10x = 642,006.90 × 290,826.67
  4. Step 4: Simplify right side
    465,277.10x = 186,712,728,844.02
  5. Step 5: Solve for x
    x = 186,712,728,844.02/465,277.10
  6. Step 6: Final answer
    x = 401,293.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.