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Finding the Fourth Proportional to 1,230,282.03, 1,697,790.87 and 720,984

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Solution

The fourth proportional to 1,230,282.03, 1,697,790.87 and 720,984 is: 994,958.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,282.03 : 1,697,790.87 = 720,984 : x
  2. Step 2: Convert to fraction form
    1,230,282.03/1,697,790.87 = 720,984/x
  3. Step 3: Cross multiply
    1,230,282.03x = 1,697,790.87 × 720,984
  4. Step 4: Simplify right side
    1,230,282.03x = 1,224,080,052,616.08
  5. Step 5: Solve for x
    x = 1,224,080,052,616.08/1,230,282.03
  6. Step 6: Final answer
    x = 994,958.90

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1.5x scale

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.