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Finding the Fourth Proportional to 863,059.79, 1,191,532.80 and 767,301.48

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Solution

The fourth proportional to 863,059.79, 1,191,532.80 and 767,301.48 is: 1,059,329.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,059.79 : 1,191,532.80 = 767,301.48 : x
  2. Step 2: Convert to fraction form
    863,059.79/1,191,532.80 = 767,301.48/x
  3. Step 3: Cross multiply
    863,059.79x = 1,191,532.80 × 767,301.48
  4. Step 4: Simplify right side
    863,059.79x = 914,264,871,114.37
  5. Step 5: Solve for x
    x = 914,264,871,114.37/863,059.79
  6. Step 6: Final answer
    x = 1,059,329.71

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1.5x scale

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.