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Finding the Fourth Proportional to 427,567.68, 641,448.72 and 227,782.80

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Solution

The fourth proportional to 427,567.68, 641,448.72 and 227,782.80 is: 341,725.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,567.68 : 641,448.72 = 227,782.80 : x
  2. Step 2: Convert to fraction form
    427,567.68/641,448.72 = 227,782.80/x
  3. Step 3: Cross multiply
    427,567.68x = 641,448.72 × 227,782.80
  4. Step 4: Simplify right side
    427,567.68x = 146,110,985,498.02
  5. Step 5: Solve for x
    x = 146,110,985,498.02/427,567.68
  6. Step 6: Final answer
    x = 341,725.98

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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.