Home / 1,145,189.60-1,717,784.40-720,036.80

Finding the Fourth Proportional to 1,145,189.60, 1,717,784.40 and 720,036.80

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Solution

The fourth proportional to 1,145,189.60, 1,717,784.40 and 720,036.80 is: 1,080,055.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,189.60 : 1,717,784.40 = 720,036.80 : x
  2. Step 2: Convert to fraction form
    1,145,189.60/1,717,784.40 = 720,036.80/x
  3. Step 3: Cross multiply
    1,145,189.60x = 1,717,784.40 × 720,036.80
  4. Step 4: Simplify right side
    1,145,189.60x = 1,236,867,982,465.92
  5. Step 5: Solve for x
    x = 1,236,867,982,465.92/1,145,189.60
  6. Step 6: Final answer
    x = 1,080,055.20

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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.