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Finding the Fourth Proportional to 660,043.19, 910,703.49 and 373,563.27

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Solution

The fourth proportional to 660,043.19, 910,703.49 and 373,563.27 is: 515,428.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,043.19 : 910,703.49 = 373,563.27 : x
  2. Step 2: Convert to fraction form
    660,043.19/910,703.49 = 373,563.27/x
  3. Step 3: Cross multiply
    660,043.19x = 910,703.49 × 373,563.27
  4. Step 4: Simplify right side
    660,043.19x = 340,205,373,724.81
  5. Step 5: Solve for x
    x = 340,205,373,724.81/660,043.19
  6. Step 6: Final answer
    x = 515,428.96

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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.