Home / 802,468.84-1,107,399.78-439,913.32

Finding the Fourth Proportional to 802,468.84, 1,107,399.78 and 439,913.32

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Solution

The fourth proportional to 802,468.84, 1,107,399.78 and 439,913.32 is: 607,076.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,468.84 : 1,107,399.78 = 439,913.32 : x
  2. Step 2: Convert to fraction form
    802,468.84/1,107,399.78 = 439,913.32/x
  3. Step 3: Cross multiply
    802,468.84x = 1,107,399.78 × 439,913.32
  4. Step 4: Simplify right side
    802,468.84x = 487,159,913,787.07
  5. Step 5: Solve for x
    x = 487,159,913,787.07/802,468.84
  6. Step 6: Final answer
    x = 607,076.42

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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.