Home / 857,809.76-1,287,556.64-716,562.37

Finding the Fourth Proportional to 857,809.76, 1,287,556.64 and 716,562.37

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Solution

The fourth proportional to 857,809.76, 1,287,556.64 and 716,562.37 is: 1,075,546.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,809.76 : 1,287,556.64 = 716,562.37 : x
  2. Step 2: Convert to fraction form
    857,809.76/1,287,556.64 = 716,562.37/x
  3. Step 3: Cross multiply
    857,809.76x = 1,287,556.64 × 716,562.37
  4. Step 4: Simplify right side
    857,809.76x = 922,614,627,447.04
  5. Step 5: Solve for x
    x = 922,614,627,447.04/857,809.76
  6. Step 6: Final answer
    x = 1,075,546.90

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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.