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Finding the Fourth Proportional to 437,028.80, 655,543.20 and 346,827.20

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Solution

The fourth proportional to 437,028.80, 655,543.20 and 346,827.20 is: 520,240.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,028.80 : 655,543.20 = 346,827.20 : x
  2. Step 2: Convert to fraction form
    437,028.80/655,543.20 = 346,827.20/x
  3. Step 3: Cross multiply
    437,028.80x = 655,543.20 × 346,827.20
  4. Step 4: Simplify right side
    437,028.80x = 227,360,212,535.04
  5. Step 5: Solve for x
    x = 227,360,212,535.04/437,028.80
  6. Step 6: Final answer
    x = 520,240.80

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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.