Home / 413,085.60-619,628.40-308,109.60

Finding the Fourth Proportional to 413,085.60, 619,628.40 and 308,109.60

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Solution

The fourth proportional to 413,085.60, 619,628.40 and 308,109.60 is: 462,164.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,085.60 : 619,628.40 = 308,109.60 : x
  2. Step 2: Convert to fraction form
    413,085.60/619,628.40 = 308,109.60/x
  3. Step 3: Cross multiply
    413,085.60x = 619,628.40 × 308,109.60
  4. Step 4: Simplify right side
    413,085.60x = 190,913,458,472.64
  5. Step 5: Solve for x
    x = 190,913,458,472.64/413,085.60
  6. Step 6: Final answer
    x = 462,164.40

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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.