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Finding the Fourth Proportional to 437,235.20, 655,852.80 and 279,641.60

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Solution

The fourth proportional to 437,235.20, 655,852.80 and 279,641.60 is: 419,462.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,235.20 : 655,852.80 = 279,641.60 : x
  2. Step 2: Convert to fraction form
    437,235.20/655,852.80 = 279,641.60/x
  3. Step 3: Cross multiply
    437,235.20x = 655,852.80 × 279,641.60
  4. Step 4: Simplify right side
    437,235.20x = 183,403,726,356.48
  5. Step 5: Solve for x
    x = 183,403,726,356.48/437,235.20
  6. Step 6: Final answer
    x = 419,462.40

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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.