Home / 889,268.80-1,333,903.20-815,785.60

Finding the Fourth Proportional to 889,268.80, 1,333,903.20 and 815,785.60

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Solution

The fourth proportional to 889,268.80, 1,333,903.20 and 815,785.60 is: 1,223,678.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,268.80 : 1,333,903.20 = 815,785.60 : x
  2. Step 2: Convert to fraction form
    889,268.80/1,333,903.20 = 815,785.60/x
  3. Step 3: Cross multiply
    889,268.80x = 1,333,903.20 × 815,785.60
  4. Step 4: Simplify right side
    889,268.80x = 1,088,179,022,353.92
  5. Step 5: Solve for x
    x = 1,088,179,022,353.92/889,268.80
  6. Step 6: Final answer
    x = 1,223,678.40

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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.