Home / 853,722.32-1,178,120.50-471,740.90

Finding the Fourth Proportional to 853,722.32, 1,178,120.50 and 471,740.90

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Solution

The fourth proportional to 853,722.32, 1,178,120.50 and 471,740.90 is: 650,993.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,722.32 : 1,178,120.50 = 471,740.90 : x
  2. Step 2: Convert to fraction form
    853,722.32/1,178,120.50 = 471,740.90/x
  3. Step 3: Cross multiply
    853,722.32x = 1,178,120.50 × 471,740.90
  4. Step 4: Simplify right side
    853,722.32x = 555,767,617,908.50
  5. Step 5: Solve for x
    x = 555,767,617,908.50/853,722.32
  6. Step 6: Final answer
    x = 650,993.43

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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.