Home / 1,276,844.40-1,911,580.20-779,180.40

Finding the Fourth Proportional to 1,276,844.40, 1,911,580.20 and 779,180.40

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Solution

The fourth proportional to 1,276,844.40, 1,911,580.20 and 779,180.40 is: 1,166,521.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,844.40 : 1,911,580.20 = 779,180.40 : x
  2. Step 2: Convert to fraction form
    1,276,844.40/1,911,580.20 = 779,180.40/x
  3. Step 3: Cross multiply
    1,276,844.40x = 1,911,580.20 × 779,180.40
  4. Step 4: Simplify right side
    1,276,844.40x = 1,489,465,824,868.08
  5. Step 5: Solve for x
    x = 1,489,465,824,868.08/1,276,844.40
  6. Step 6: Final answer
    x = 1,166,521.01

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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.