Home / 864,228.92-1,296,921.95-358,790.31

Finding the Fourth Proportional to 864,228.92, 1,296,921.95 and 358,790.31

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Solution

The fourth proportional to 864,228.92, 1,296,921.95 and 358,790.31 is: 538,425.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,228.92 : 1,296,921.95 = 358,790.31 : x
  2. Step 2: Convert to fraction form
    864,228.92/1,296,921.95 = 358,790.31/x
  3. Step 3: Cross multiply
    864,228.92x = 1,296,921.95 × 358,790.31
  4. Step 4: Simplify right side
    864,228.92x = 465,323,026,692.35
  5. Step 5: Solve for x
    x = 465,323,026,692.35/864,228.92
  6. Step 6: Final answer
    x = 538,425.66

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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.