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Finding the Fourth Proportional to 860,284.80, 1,292,293.44 and 828,792

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Solution

The fourth proportional to 860,284.80, 1,292,293.44 and 828,792 is: 1,244,985.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,284.80 : 1,292,293.44 = 828,792 : x
  2. Step 2: Convert to fraction form
    860,284.80/1,292,293.44 = 828,792/x
  3. Step 3: Cross multiply
    860,284.80x = 1,292,293.44 × 828,792
  4. Step 4: Simplify right side
    860,284.80x = 1,071,042,464,724.48
  5. Step 5: Solve for x
    x = 1,071,042,464,724.48/860,284.80
  6. Step 6: Final answer
    x = 1,244,985.92

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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.