Home / 785,352.29-1,083,757.32-479,939.78

Finding the Fourth Proportional to 785,352.29, 1,083,757.32 and 479,939.78

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Solution

The fourth proportional to 785,352.29, 1,083,757.32 and 479,939.78 is: 662,299.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,352.29 : 1,083,757.32 = 479,939.78 : x
  2. Step 2: Convert to fraction form
    785,352.29/1,083,757.32 = 479,939.78/x
  3. Step 3: Cross multiply
    785,352.29x = 1,083,757.32 × 479,939.78
  4. Step 4: Simplify right side
    785,352.29x = 520,138,249,734.19
  5. Step 5: Solve for x
    x = 520,138,249,734.19/785,352.29
  6. Step 6: Final answer
    x = 662,299.27

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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.