Home / 1,312,659.40-1,969,267.74-414,360.76

Finding the Fourth Proportional to 1,312,659.40, 1,969,267.74 and 414,360.76

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Solution

The fourth proportional to 1,312,659.40, 1,969,267.74 and 414,360.76 is: 621,629.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,659.40 : 1,969,267.74 = 414,360.76 : x
  2. Step 2: Convert to fraction form
    1,312,659.40/1,969,267.74 = 414,360.76/x
  3. Step 3: Cross multiply
    1,312,659.40x = 1,969,267.74 × 414,360.76
  4. Step 4: Simplify right side
    1,312,659.40x = 815,987,277,389.88
  5. Step 5: Solve for x
    x = 815,987,277,389.88/1,312,659.40
  6. Step 6: Final answer
    x = 621,629.10

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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.