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Finding the Fourth Proportional to 460,418.01, 690,561.41 and 144,866.72

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Solution

The fourth proportional to 460,418.01, 690,561.41 and 144,866.72 is: 217,279.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,418.01 : 690,561.41 = 144,866.72 : x
  2. Step 2: Convert to fraction form
    460,418.01/690,561.41 = 144,866.72/x
  3. Step 3: Cross multiply
    460,418.01x = 690,561.41 × 144,866.72
  4. Step 4: Simplify right side
    460,418.01x = 100,039,362,248.14
  5. Step 5: Solve for x
    x = 100,039,362,248.14/460,418.01
  6. Step 6: Final answer
    x = 217,279.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.