Home / 1,276,674.40-1,911,325.20-779,010.40

Finding the Fourth Proportional to 1,276,674.40, 1,911,325.20 and 779,010.40

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Solution

The fourth proportional to 1,276,674.40, 1,911,325.20 and 779,010.40 is: 1,166,266.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,674.40 : 1,911,325.20 = 779,010.40 : x
  2. Step 2: Convert to fraction form
    1,276,674.40/1,911,325.20 = 779,010.40/x
  3. Step 3: Cross multiply
    1,276,674.40x = 1,911,325.20 × 779,010.40
  4. Step 4: Simplify right side
    1,276,674.40x = 1,488,942,208,582.08
  5. Step 5: Solve for x
    x = 1,488,942,208,582.08/1,276,674.40
  6. Step 6: Final answer
    x = 1,166,266.21

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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.