Home / 753,770.08-1,040,242.60-427,146.40

Finding the Fourth Proportional to 753,770.08, 1,040,242.60 and 427,146.40

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Solution

The fourth proportional to 753,770.08, 1,040,242.60 and 427,146.40 is: 589,484.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,770.08 : 1,040,242.60 = 427,146.40 : x
  2. Step 2: Convert to fraction form
    753,770.08/1,040,242.60 = 427,146.40/x
  3. Step 3: Cross multiply
    753,770.08x = 1,040,242.60 × 427,146.40
  4. Step 4: Simplify right side
    753,770.08x = 444,335,881,716.64
  5. Step 5: Solve for x
    x = 444,335,881,716.64/753,770.08
  6. Step 6: Final answer
    x = 589,484.64

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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.