Home / 1,174,703.28-1,621,035.72-665,409.30

Finding the Fourth Proportional to 1,174,703.28, 1,621,035.72 and 665,409.30

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Solution

The fourth proportional to 1,174,703.28, 1,621,035.72 and 665,409.30 is: 918,233.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174,703.28 : 1,621,035.72 = 665,409.30 : x
  2. Step 2: Convert to fraction form
    1,174,703.28/1,621,035.72 = 665,409.30/x
  3. Step 3: Cross multiply
    1,174,703.28x = 1,621,035.72 × 665,409.30
  4. Step 4: Simplify right side
    1,174,703.28x = 1,078,652,243,720.20
  5. Step 5: Solve for x
    x = 1,078,652,243,720.20/1,174,703.28
  6. Step 6: Final answer
    x = 918,233.79

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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.