Home / 417,026.24-575,039.76-309,795.20

Finding the Fourth Proportional to 417,026.24, 575,039.76 and 309,795.20

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Solution

The fourth proportional to 417,026.24, 575,039.76 and 309,795.20 is: 427,178.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,026.24 : 575,039.76 = 309,795.20 : x
  2. Step 2: Convert to fraction form
    417,026.24/575,039.76 = 309,795.20/x
  3. Step 3: Cross multiply
    417,026.24x = 575,039.76 × 309,795.20
  4. Step 4: Simplify right side
    417,026.24x = 178,144,557,457.15
  5. Step 5: Solve for x
    x = 178,144,557,457.15/417,026.24
  6. Step 6: Final answer
    x = 427,178.29

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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.