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Finding the Fourth Proportional to 882,687.60, 1,325,413.80 and 509,439.60

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Solution

The fourth proportional to 882,687.60, 1,325,413.80 and 509,439.60 is: 764,957.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,687.60 : 1,325,413.80 = 509,439.60 : x
  2. Step 2: Convert to fraction form
    882,687.60/1,325,413.80 = 509,439.60/x
  3. Step 3: Cross multiply
    882,687.60x = 1,325,413.80 × 509,439.60
  4. Step 4: Simplify right side
    882,687.60x = 675,218,276,106.48
  5. Step 5: Solve for x
    x = 675,218,276,106.48/882,687.60
  6. Step 6: Final answer
    x = 764,957.25

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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.