Home / 449,609.20-619,740.08-304,369.18

Finding the Fourth Proportional to 449,609.20, 619,740.08 and 304,369.18

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Solution

The fourth proportional to 449,609.20, 619,740.08 and 304,369.18 is: 419,541.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,609.20 : 619,740.08 = 304,369.18 : x
  2. Step 2: Convert to fraction form
    449,609.20/619,740.08 = 304,369.18/x
  3. Step 3: Cross multiply
    449,609.20x = 619,740.08 × 304,369.18
  4. Step 4: Simplify right side
    449,609.20x = 188,629,779,962.73
  5. Step 5: Solve for x
    x = 188,629,779,962.73/449,609.20
  6. Step 6: Final answer
    x = 419,541.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.