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Finding the Fourth Proportional to 437,629.70, 655,132.35 and 260,045.30

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Solution

The fourth proportional to 437,629.70, 655,132.35 and 260,045.30 is: 389,288.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,629.70 : 655,132.35 = 260,045.30 : x
  2. Step 2: Convert to fraction form
    437,629.70/655,132.35 = 260,045.30/x
  3. Step 3: Cross multiply
    437,629.70x = 655,132.35 × 260,045.30
  4. Step 4: Simplify right side
    437,629.70x = 170,364,088,495.46
  5. Step 5: Solve for x
    x = 170,364,088,495.46/437,629.70
  6. Step 6: Final answer
    x = 389,288.22

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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.