Home / 407,130.86-561,323.96-290,982.94

Finding the Fourth Proportional to 407,130.86, 561,323.96 and 290,982.94

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Solution

The fourth proportional to 407,130.86, 561,323.96 and 290,982.94 is: 401,187.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,130.86 : 561,323.96 = 290,982.94 : x
  2. Step 2: Convert to fraction form
    407,130.86/561,323.96 = 290,982.94/x
  3. Step 3: Cross multiply
    407,130.86x = 561,323.96 × 290,982.94
  4. Step 4: Simplify right side
    407,130.86x = 163,335,696,173.24
  5. Step 5: Solve for x
    x = 163,335,696,173.24/407,130.86
  6. Step 6: Final answer
    x = 401,187.22

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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.