Home / 1,211,243.85-1,816,872.65-312,624.16

Finding the Fourth Proportional to 1,211,243.85, 1,816,872.65 and 312,624.16

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Solution

The fourth proportional to 1,211,243.85, 1,816,872.65 and 312,624.16 is: 468,938.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,243.85 : 1,816,872.65 = 312,624.16 : x
  2. Step 2: Convert to fraction form
    1,211,243.85/1,816,872.65 = 312,624.16/x
  3. Step 3: Cross multiply
    1,211,243.85x = 1,816,872.65 × 312,624.16
  4. Step 4: Simplify right side
    1,211,243.85x = 567,998,282,272.60
  5. Step 5: Solve for x
    x = 567,998,282,272.60/1,211,243.85
  6. Step 6: Final answer
    x = 468,938.01

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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.