Home / 911,668.40-1,367,739.06-484,853.28

Finding the Fourth Proportional to 911,668.40, 1,367,739.06 and 484,853.28

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Solution

The fourth proportional to 911,668.40, 1,367,739.06 and 484,853.28 is: 727,405.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,668.40 : 1,367,739.06 = 484,853.28 : x
  2. Step 2: Convert to fraction form
    911,668.40/1,367,739.06 = 484,853.28/x
  3. Step 3: Cross multiply
    911,668.40x = 1,367,739.06 × 484,853.28
  4. Step 4: Simplify right side
    911,668.40x = 663,152,769,425.12
  5. Step 5: Solve for x
    x = 663,152,769,425.12/911,668.40
  6. Step 6: Final answer
    x = 727,405.68

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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.