Home / 1,091,235.72-1,505,981.01-661,533.96

Finding the Fourth Proportional to 1,091,235.72, 1,505,981.01 and 661,533.96

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Solution

The fourth proportional to 1,091,235.72, 1,505,981.01 and 661,533.96 is: 912,962.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,235.72 : 1,505,981.01 = 661,533.96 : x
  2. Step 2: Convert to fraction form
    1,091,235.72/1,505,981.01 = 661,533.96/x
  3. Step 3: Cross multiply
    1,091,235.72x = 1,505,981.01 × 661,533.96
  4. Step 4: Simplify right side
    1,091,235.72x = 996,257,581,230.10
  5. Step 5: Solve for x
    x = 996,257,581,230.10/1,091,235.72
  6. Step 6: Final answer
    x = 912,962.77

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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.