Home / 415,829.40-623,744.10-384,336.60

Finding the Fourth Proportional to 415,829.40, 623,744.10 and 384,336.60

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Solution

The fourth proportional to 415,829.40, 623,744.10 and 384,336.60 is: 576,504.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,829.40 : 623,744.10 = 384,336.60 : x
  2. Step 2: Convert to fraction form
    415,829.40/623,744.10 = 384,336.60/x
  3. Step 3: Cross multiply
    415,829.40x = 623,744.10 × 384,336.60
  4. Step 4: Simplify right side
    415,829.40x = 239,727,686,664.06
  5. Step 5: Solve for x
    x = 239,727,686,664.06/415,829.40
  6. Step 6: Final answer
    x = 576,504.90

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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.