Home / 526,370.20-789,548-127,007.64

Finding the Fourth Proportional to 526,370.20, 789,548 and 127,007.64

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Solution

The fourth proportional to 526,370.20, 789,548 and 127,007.64 is: 190,509.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,370.20 : 789,548 = 127,007.64 : x
  2. Step 2: Convert to fraction form
    526,370.20/789,548 = 127,007.64/x
  3. Step 3: Cross multiply
    526,370.20x = 789,548 × 127,007.64
  4. Step 4: Simplify right side
    526,370.20x = 100,278,628,146.72
  5. Step 5: Solve for x
    x = 100,278,628,146.72/526,370.20
  6. Step 6: Final answer
    x = 190,509.70

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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.