Home / 809,563.78-1,117,296.43-470,032.03

Finding the Fourth Proportional to 809,563.78, 1,117,296.43 and 470,032.03

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Solution

The fourth proportional to 809,563.78, 1,117,296.43 and 470,032.03 is: 648,701.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,563.78 : 1,117,296.43 = 470,032.03 : x
  2. Step 2: Convert to fraction form
    809,563.78/1,117,296.43 = 470,032.03/x
  3. Step 3: Cross multiply
    809,563.78x = 1,117,296.43 × 470,032.03
  4. Step 4: Simplify right side
    809,563.78x = 525,165,111,970.12
  5. Step 5: Solve for x
    x = 525,165,111,970.12/809,563.78
  6. Step 6: Final answer
    x = 648,701.34

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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.