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Finding the Fourth Proportional to 660,018.56, 910,847.52 and 373,535.36

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Solution

The fourth proportional to 660,018.56, 910,847.52 and 373,535.36 is: 515,491.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,018.56 : 910,847.52 = 373,535.36 : x
  2. Step 2: Convert to fraction form
    660,018.56/910,847.52 = 373,535.36/x
  3. Step 3: Cross multiply
    660,018.56x = 910,847.52 × 373,535.36
  4. Step 4: Simplify right side
    660,018.56x = 340,233,756,288.31
  5. Step 5: Solve for x
    x = 340,233,756,288.31/660,018.56
  6. Step 6: Final answer
    x = 515,491.20

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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.