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Finding the Fourth Proportional to 842,994, 1,163,469.06 and 626,639.58

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Solution

The fourth proportional to 842,994, 1,163,469.06 and 626,639.58 is: 864,864.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,994 : 1,163,469.06 = 626,639.58 : x
  2. Step 2: Convert to fraction form
    842,994/1,163,469.06 = 626,639.58/x
  3. Step 3: Cross multiply
    842,994x = 1,163,469.06 × 626,639.58
  4. Step 4: Simplify right side
    842,994x = 729,075,763,101.40
  5. Step 5: Solve for x
    x = 729,075,763,101.40/842,994
  6. Step 6: Final answer
    x = 864,864.71

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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.