Home / 878,311.20-1,319,435.10-842,444.40

Finding the Fourth Proportional to 878,311.20, 1,319,435.10 and 842,444.40

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Solution

The fourth proportional to 878,311.20, 1,319,435.10 and 842,444.40 is: 1,265,554.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,311.20 : 1,319,435.10 = 842,444.40 : x
  2. Step 2: Convert to fraction form
    878,311.20/1,319,435.10 = 842,444.40/x
  3. Step 3: Cross multiply
    878,311.20x = 1,319,435.10 × 842,444.40
  4. Step 4: Simplify right side
    878,311.20x = 1,111,550,711,158.44
  5. Step 5: Solve for x
    x = 1,111,550,711,158.44/878,311.20
  6. Step 6: Final answer
    x = 1,265,554.52

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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.