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Finding the Fourth Proportional to 802,537.81, 1,107,502.03 and 439,964.22

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Solution

The fourth proportional to 802,537.81, 1,107,502.03 and 439,964.22 is: 607,150.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,537.81 : 1,107,502.03 = 439,964.22 : x
  2. Step 2: Convert to fraction form
    802,537.81/1,107,502.03 = 439,964.22/x
  3. Step 3: Cross multiply
    802,537.81x = 1,107,502.03 × 439,964.22
  4. Step 4: Simplify right side
    802,537.81x = 487,261,271,480.45
  5. Step 5: Solve for x
    x = 487,261,271,480.45/802,537.81
  6. Step 6: Final answer
    x = 607,150.55

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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.