Home / 990,751.23-1,367,236.69-538,042.23

Finding the Fourth Proportional to 990,751.23, 1,367,236.69 and 538,042.23

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Solution

The fourth proportional to 990,751.23, 1,367,236.69 and 538,042.23 is: 742,498.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,751.23 : 1,367,236.69 = 538,042.23 : x
  2. Step 2: Convert to fraction form
    990,751.23/1,367,236.69 = 538,042.23/x
  3. Step 3: Cross multiply
    990,751.23x = 1,367,236.69 × 538,042.23
  4. Step 4: Simplify right side
    990,751.23x = 735,631,076,280.31
  5. Step 5: Solve for x
    x = 735,631,076,280.31/990,751.23
  6. Step 6: Final answer
    x = 742,498.27

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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.