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Finding the Fourth Proportional to 387,293.60, 580,940.40 and 352,301.60

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Solution

The fourth proportional to 387,293.60, 580,940.40 and 352,301.60 is: 528,452.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,293.60 : 580,940.40 = 352,301.60 : x
  2. Step 2: Convert to fraction form
    387,293.60/580,940.40 = 352,301.60/x
  3. Step 3: Cross multiply
    387,293.60x = 580,940.40 × 352,301.60
  4. Step 4: Simplify right side
    387,293.60x = 204,666,232,424.64
  5. Step 5: Solve for x
    x = 204,666,232,424.64/387,293.60
  6. Step 6: Final answer
    x = 528,452.40

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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.