Home / 827,390.10-1,241,699.55-329,111.70

Finding the Fourth Proportional to 827,390.10, 1,241,699.55 and 329,111.70

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Solution

The fourth proportional to 827,390.10, 1,241,699.55 and 329,111.70 is: 493,911.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,390.10 : 1,241,699.55 = 329,111.70 : x
  2. Step 2: Convert to fraction form
    827,390.10/1,241,699.55 = 329,111.70/x
  3. Step 3: Cross multiply
    827,390.10x = 1,241,699.55 × 329,111.70
  4. Step 4: Simplify right side
    827,390.10x = 408,657,849,789.74
  5. Step 5: Solve for x
    x = 408,657,849,789.74/827,390.10
  6. Step 6: Final answer
    x = 493,911.94

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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.