Home / 901,345.70-1,243,770.72-538,697.36

Finding the Fourth Proportional to 901,345.70, 1,243,770.72 and 538,697.36

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Solution

The fourth proportional to 901,345.70, 1,243,770.72 and 538,697.36 is: 743,350.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,345.70 : 1,243,770.72 = 538,697.36 : x
  2. Step 2: Convert to fraction form
    901,345.70/1,243,770.72 = 538,697.36/x
  3. Step 3: Cross multiply
    901,345.70x = 1,243,770.72 × 538,697.36
  4. Step 4: Simplify right side
    901,345.70x = 670,016,003,309.30
  5. Step 5: Solve for x
    x = 670,016,003,309.30/901,345.70
  6. Step 6: Final answer
    x = 743,350.75

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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.