Home / 916,842.40-1,375,263.60-580,919.20

Finding the Fourth Proportional to 916,842.40, 1,375,263.60 and 580,919.20

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Solution

The fourth proportional to 916,842.40, 1,375,263.60 and 580,919.20 is: 871,378.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,842.40 : 1,375,263.60 = 580,919.20 : x
  2. Step 2: Convert to fraction form
    916,842.40/1,375,263.60 = 580,919.20/x
  3. Step 3: Cross multiply
    916,842.40x = 1,375,263.60 × 580,919.20
  4. Step 4: Simplify right side
    916,842.40x = 798,917,030,301.12
  5. Step 5: Solve for x
    x = 798,917,030,301.12/916,842.40
  6. Step 6: Final answer
    x = 871,378.80

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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.