Home / 538,429.98-743,038.25-296,721.21

Finding the Fourth Proportional to 538,429.98, 743,038.25 and 296,721.21

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Solution

The fourth proportional to 538,429.98, 743,038.25 and 296,721.21 is: 409,477.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,429.98 : 743,038.25 = 296,721.21 : x
  2. Step 2: Convert to fraction form
    538,429.98/743,038.25 = 296,721.21/x
  3. Step 3: Cross multiply
    538,429.98x = 743,038.25 × 296,721.21
  4. Step 4: Simplify right side
    538,429.98x = 220,475,207,132.68
  5. Step 5: Solve for x
    x = 220,475,207,132.68/538,429.98
  6. Step 6: Final answer
    x = 409,477.96

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1.5x scale

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.