Home / 1,205,042.84-1,662,958.94-688,807.81

Finding the Fourth Proportional to 1,205,042.84, 1,662,958.94 and 688,807.81

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Solution

The fourth proportional to 1,205,042.84, 1,662,958.94 and 688,807.81 is: 950,554.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,042.84 : 1,662,958.94 = 688,807.81 : x
  2. Step 2: Convert to fraction form
    1,205,042.84/1,662,958.94 = 688,807.81/x
  3. Step 3: Cross multiply
    1,205,042.84x = 1,662,958.94 × 688,807.81
  4. Step 4: Simplify right side
    1,205,042.84x = 1,145,459,109,932.40
  5. Step 5: Solve for x
    x = 1,145,459,109,932.40/1,205,042.84
  6. Step 6: Final answer
    x = 950,554.68

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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.