Home / 641,709.27-884,916.50-426,858.39

Finding the Fourth Proportional to 641,709.27, 884,916.50 and 426,858.39

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Solution

The fourth proportional to 641,709.27, 884,916.50 and 426,858.39 is: 588,637.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,709.27 : 884,916.50 = 426,858.39 : x
  2. Step 2: Convert to fraction form
    641,709.27/884,916.50 = 426,858.39/x
  3. Step 3: Cross multiply
    641,709.27x = 884,916.50 × 426,858.39
  4. Step 4: Simplify right side
    641,709.27x = 377,734,030,340.14
  5. Step 5: Solve for x
    x = 377,734,030,340.14/641,709.27
  6. Step 6: Final answer
    x = 588,637.33

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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.