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Finding the Fourth Proportional to 404,701.60, 607,743.60 and 265,079.20

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Solution

The fourth proportional to 404,701.60, 607,743.60 and 265,079.20 is: 398,071.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,701.60 : 607,743.60 = 265,079.20 : x
  2. Step 2: Convert to fraction form
    404,701.60/607,743.60 = 265,079.20/x
  3. Step 3: Cross multiply
    404,701.60x = 607,743.60 × 265,079.20
  4. Step 4: Simplify right side
    404,701.60x = 161,100,187,293.12
  5. Step 5: Solve for x
    x = 161,100,187,293.12/404,701.60
  6. Step 6: Final answer
    x = 398,071.54

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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.