Home / 827,147.69-1,238,977.85-378,246.35

Finding the Fourth Proportional to 827,147.69, 1,238,977.85 and 378,246.35

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Solution

The fourth proportional to 827,147.69, 1,238,977.85 and 378,246.35 is: 566,572.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,147.69 : 1,238,977.85 = 378,246.35 : x
  2. Step 2: Convert to fraction form
    827,147.69/1,238,977.85 = 378,246.35/x
  3. Step 3: Cross multiply
    827,147.69x = 1,238,977.85 × 378,246.35
  4. Step 4: Simplify right side
    827,147.69x = 468,638,841,407.23
  5. Step 5: Solve for x
    x = 468,638,841,407.23/827,147.69
  6. Step 6: Final answer
    x = 566,572.15

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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.