Home / 1,126,030.37-1,554,033.60-642,668.72

Finding the Fourth Proportional to 1,126,030.37, 1,554,033.60 and 642,668.72

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Solution

The fourth proportional to 1,126,030.37, 1,554,033.60 and 642,668.72 is: 886,946.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,030.37 : 1,554,033.60 = 642,668.72 : x
  2. Step 2: Convert to fraction form
    1,126,030.37/1,554,033.60 = 642,668.72/x
  3. Step 3: Cross multiply
    1,126,030.37x = 1,554,033.60 × 642,668.72
  4. Step 4: Simplify right side
    1,126,030.37x = 998,728,776,778.82
  5. Step 5: Solve for x
    x = 998,728,776,778.82/1,126,030.37
  6. Step 6: Final answer
    x = 886,946.58

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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.