Home / 505,720.04-697,913.70-290,859.84

Finding the Fourth Proportional to 505,720.04, 697,913.70 and 290,859.84

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Solution

The fourth proportional to 505,720.04, 697,913.70 and 290,859.84 is: 401,398.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,720.04 : 697,913.70 = 290,859.84 : x
  2. Step 2: Convert to fraction form
    505,720.04/697,913.70 = 290,859.84/x
  3. Step 3: Cross multiply
    505,720.04x = 697,913.70 × 290,859.84
  4. Step 4: Simplify right side
    505,720.04x = 202,995,067,115.81
  5. Step 5: Solve for x
    x = 202,995,067,115.81/505,720.04
  6. Step 6: Final answer
    x = 401,398.11

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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.