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Finding the Fourth Proportional to 453,952.80, 680,929.20 and 419,835.60

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Solution

The fourth proportional to 453,952.80, 680,929.20 and 419,835.60 is: 629,753.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,952.80 : 680,929.20 = 419,835.60 : x
  2. Step 2: Convert to fraction form
    453,952.80/680,929.20 = 419,835.60/x
  3. Step 3: Cross multiply
    453,952.80x = 680,929.20 × 419,835.60
  4. Step 4: Simplify right side
    453,952.80x = 285,878,319,239.52
  5. Step 5: Solve for x
    x = 285,878,319,239.52/453,952.80
  6. Step 6: Final answer
    x = 629,753.40

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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.