Home / 403,273.28-555,585.44-289,899.84

Finding the Fourth Proportional to 403,273.28, 555,585.44 and 289,899.84

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Solution

The fourth proportional to 403,273.28, 555,585.44 and 289,899.84 is: 399,392.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,273.28 : 555,585.44 = 289,899.84 : x
  2. Step 2: Convert to fraction form
    403,273.28/555,585.44 = 289,899.84/x
  3. Step 3: Cross multiply
    403,273.28x = 555,585.44 × 289,899.84
  4. Step 4: Simplify right side
    403,273.28x = 161,064,130,162.33
  5. Step 5: Solve for x
    x = 161,064,130,162.33/403,273.28
  6. Step 6: Final answer
    x = 399,392.02

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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.