Home / 1,316,589.80-1,974,884.70-1,213,946.60

Finding the Fourth Proportional to 1,316,589.80, 1,974,884.70 and 1,213,946.60

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Solution

The fourth proportional to 1,316,589.80, 1,974,884.70 and 1,213,946.60 is: 1,820,919.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,589.80 : 1,974,884.70 = 1,213,946.60 : x
  2. Step 2: Convert to fraction form
    1,316,589.80/1,974,884.70 = 1,213,946.60/x
  3. Step 3: Cross multiply
    1,316,589.80x = 1,974,884.70 × 1,213,946.60
  4. Step 4: Simplify right side
    1,316,589.80x = 2,397,404,566,957.02
  5. Step 5: Solve for x
    x = 2,397,404,566,957.02/1,316,589.80
  6. Step 6: Final answer
    x = 1,820,919.90

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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.