Home / 901,352.70-1,243,780.38-538,704.36

Finding the Fourth Proportional to 901,352.70, 1,243,780.38 and 538,704.36

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Solution

The fourth proportional to 901,352.70, 1,243,780.38 and 538,704.36 is: 743,360.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,352.70 : 1,243,780.38 = 538,704.36 : x
  2. Step 2: Convert to fraction form
    901,352.70/1,243,780.38 = 538,704.36/x
  3. Step 3: Cross multiply
    901,352.70x = 1,243,780.38 × 538,704.36
  4. Step 4: Simplify right side
    901,352.70x = 670,029,913,588.46
  5. Step 5: Solve for x
    x = 670,029,913,588.46/901,352.70
  6. Step 6: Final answer
    x = 743,360.41

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Double scale
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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.