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Finding the Fourth Proportional to 525,382.60, 788,657.10 and 325,928.20

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Solution

The fourth proportional to 525,382.60, 788,657.10 and 325,928.20 is: 489,254.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,382.60 : 788,657.10 = 325,928.20 : x
  2. Step 2: Convert to fraction form
    525,382.60/788,657.10 = 325,928.20/x
  3. Step 3: Cross multiply
    525,382.60x = 788,657.10 × 325,928.20
  4. Step 4: Simplify right side
    525,382.60x = 257,045,589,020.22
  5. Step 5: Solve for x
    x = 257,045,589,020.22/525,382.60
  6. Step 6: Final answer
    x = 489,254.10

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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.