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Finding the Fourth Proportional to 468,419.79, 646,418.77 and 253,559.79

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Solution

The fourth proportional to 468,419.79, 646,418.77 and 253,559.79 is: 349,912.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,419.79 : 646,418.77 = 253,559.79 : x
  2. Step 2: Convert to fraction form
    468,419.79/646,418.77 = 253,559.79/x
  3. Step 3: Cross multiply
    468,419.79x = 646,418.77 × 253,559.79
  4. Step 4: Simplify right side
    468,419.79x = 163,905,807,573.26
  5. Step 5: Solve for x
    x = 163,905,807,573.26/468,419.79
  6. Step 6: Final answer
    x = 349,912.22

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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.