Home / 853,999.81-1,281,022.40-373,979.64

Finding the Fourth Proportional to 853,999.81, 1,281,022.40 and 373,979.64

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Solution

The fourth proportional to 853,999.81, 1,281,022.40 and 373,979.64 is: 560,979.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,999.81 : 1,281,022.40 = 373,979.64 : x
  2. Step 2: Convert to fraction form
    853,999.81/1,281,022.40 = 373,979.64/x
  3. Step 3: Cross multiply
    853,999.81x = 1,281,022.40 × 373,979.64
  4. Step 4: Simplify right side
    853,999.81x = 479,076,295,983.94
  5. Step 5: Solve for x
    x = 479,076,295,983.94/853,999.81
  6. Step 6: Final answer
    x = 560,979.39

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1.5x scale

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.