Home / 1,221,355.80-1,832,033.70-918,237.60

Finding the Fourth Proportional to 1,221,355.80, 1,832,033.70 and 918,237.60

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Solution

The fourth proportional to 1,221,355.80, 1,832,033.70 and 918,237.60 is: 1,377,356.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,355.80 : 1,832,033.70 = 918,237.60 : x
  2. Step 2: Convert to fraction form
    1,221,355.80/1,832,033.70 = 918,237.60/x
  3. Step 3: Cross multiply
    1,221,355.80x = 1,832,033.70 × 918,237.60
  4. Step 4: Simplify right side
    1,221,355.80x = 1,682,242,227,807.12
  5. Step 5: Solve for x
    x = 1,682,242,227,807.12/1,221,355.80
  6. Step 6: Final answer
    x = 1,377,356.40

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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.