Home / 891,431.31-1,337,343.80-330,465.81

Finding the Fourth Proportional to 891,431.31, 1,337,343.80 and 330,465.81

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Solution

The fourth proportional to 891,431.31, 1,337,343.80 and 330,465.81 is: 495,771.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,431.31 : 1,337,343.80 = 330,465.81 : x
  2. Step 2: Convert to fraction form
    891,431.31/1,337,343.80 = 330,465.81/x
  3. Step 3: Cross multiply
    891,431.31x = 1,337,343.80 × 330,465.81
  4. Step 4: Simplify right side
    891,431.31x = 441,946,402,115.48
  5. Step 5: Solve for x
    x = 441,946,402,115.48/891,431.31
  6. Step 6: Final answer
    x = 495,771.68

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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.