Home / 1,105,291.20-1,657,936.80-1,091,294.40

Finding the Fourth Proportional to 1,105,291.20, 1,657,936.80 and 1,091,294.40

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Solution

The fourth proportional to 1,105,291.20, 1,657,936.80 and 1,091,294.40 is: 1,636,941.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,291.20 : 1,657,936.80 = 1,091,294.40 : x
  2. Step 2: Convert to fraction form
    1,105,291.20/1,657,936.80 = 1,091,294.40/x
  3. Step 3: Cross multiply
    1,105,291.20x = 1,657,936.80 × 1,091,294.40
  4. Step 4: Simplify right side
    1,105,291.20x = 1,809,297,145,393.92
  5. Step 5: Solve for x
    x = 1,809,297,145,393.92/1,105,291.20
  6. Step 6: Final answer
    x = 1,636,941.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.