Home / 878,454.80-1,317,682.20-869,123.60

Finding the Fourth Proportional to 878,454.80, 1,317,682.20 and 869,123.60

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Solution

The fourth proportional to 878,454.80, 1,317,682.20 and 869,123.60 is: 1,303,685.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,454.80 : 1,317,682.20 = 869,123.60 : x
  2. Step 2: Convert to fraction form
    878,454.80/1,317,682.20 = 869,123.60/x
  3. Step 3: Cross multiply
    878,454.80x = 1,317,682.20 × 869,123.60
  4. Step 4: Simplify right side
    878,454.80x = 1,145,228,697,319.92
  5. Step 5: Solve for x
    x = 1,145,228,697,319.92/878,454.80
  6. Step 6: Final answer
    x = 1,303,685.40

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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.