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Finding the Fourth Proportional to 525,261.60, 788,475.60 and 325,807.20

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Solution

The fourth proportional to 525,261.60, 788,475.60 and 325,807.20 is: 489,072.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,261.60 : 788,475.60 = 325,807.20 : x
  2. Step 2: Convert to fraction form
    525,261.60/788,475.60 = 325,807.20/x
  3. Step 3: Cross multiply
    525,261.60x = 788,475.60 × 325,807.20
  4. Step 4: Simplify right side
    525,261.60x = 256,891,027,504.32
  5. Step 5: Solve for x
    x = 256,891,027,504.32/525,261.60
  6. Step 6: Final answer
    x = 489,072.55

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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.