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Finding the Fourth Proportional to 404,661.60, 607,683.60 and 265,039.20

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Solution

The fourth proportional to 404,661.60, 607,683.60 and 265,039.20 is: 398,011.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,661.60 : 607,683.60 = 265,039.20 : x
  2. Step 2: Convert to fraction form
    404,661.60/607,683.60 = 265,039.20/x
  3. Step 3: Cross multiply
    404,661.60x = 607,683.60 × 265,039.20
  4. Step 4: Simplify right side
    404,661.60x = 161,059,975,197.12
  5. Step 5: Solve for x
    x = 161,059,975,197.12/404,661.60
  6. Step 6: Final answer
    x = 398,011.51

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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.