Home / 705,278.20-973,295.49-399,346.51

Finding the Fourth Proportional to 705,278.20, 973,295.49 and 399,346.51

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Solution

The fourth proportional to 705,278.20, 973,295.49 and 399,346.51 is: 551,104.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,278.20 : 973,295.49 = 399,346.51 : x
  2. Step 2: Convert to fraction form
    705,278.20/973,295.49 = 399,346.51/x
  3. Step 3: Cross multiply
    705,278.20x = 973,295.49 × 399,346.51
  4. Step 4: Simplify right side
    705,278.20x = 388,682,157,130.24
  5. Step 5: Solve for x
    x = 388,682,157,130.24/705,278.20
  6. Step 6: Final answer
    x = 551,104.74

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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.