Home / 1,280,628.12-1,767,267.44-707,668.32

Finding the Fourth Proportional to 1,280,628.12, 1,767,267.44 and 707,668.32

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Solution

The fourth proportional to 1,280,628.12, 1,767,267.44 and 707,668.32 is: 976,582.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,628.12 : 1,767,267.44 = 707,668.32 : x
  2. Step 2: Convert to fraction form
    1,280,628.12/1,767,267.44 = 707,668.32/x
  3. Step 3: Cross multiply
    1,280,628.12x = 1,767,267.44 × 707,668.32
  4. Step 4: Simplify right side
    1,280,628.12x = 1,250,639,180,255.50
  5. Step 5: Solve for x
    x = 1,250,639,180,255.50/1,280,628.12
  6. Step 6: Final answer
    x = 976,582.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.