Home / 853,972.34-1,178,439.45-471,989.30

Finding the Fourth Proportional to 853,972.34, 1,178,439.45 and 471,989.30

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Solution

The fourth proportional to 853,972.34, 1,178,439.45 and 471,989.30 is: 651,321.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,972.34 : 1,178,439.45 = 471,989.30 : x
  2. Step 2: Convert to fraction form
    853,972.34/1,178,439.45 = 471,989.30/x
  3. Step 3: Cross multiply
    853,972.34x = 1,178,439.45 × 471,989.30
  4. Step 4: Simplify right side
    853,972.34x = 556,210,811,097.89
  5. Step 5: Solve for x
    x = 556,210,811,097.89/853,972.34
  6. Step 6: Final answer
    x = 651,321.81

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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.