Home / 769,514.40-1,154,271.60-680,940.90

Finding the Fourth Proportional to 769,514.40, 1,154,271.60 and 680,940.90

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Solution

The fourth proportional to 769,514.40, 1,154,271.60 and 680,940.90 is: 1,021,411.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,514.40 : 1,154,271.60 = 680,940.90 : x
  2. Step 2: Convert to fraction form
    769,514.40/1,154,271.60 = 680,940.90/x
  3. Step 3: Cross multiply
    769,514.40x = 1,154,271.60 × 680,940.90
  4. Step 4: Simplify right side
    769,514.40x = 785,990,742,148.44
  5. Step 5: Solve for x
    x = 785,990,742,148.44/769,514.40
  6. Step 6: Final answer
    x = 1,021,411.35

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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.