Home / 753,904.86-1,130,912.19-280,590.06

Finding the Fourth Proportional to 753,904.86, 1,130,912.19 and 280,590.06

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Solution

The fourth proportional to 753,904.86, 1,130,912.19 and 280,590.06 is: 420,905.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,904.86 : 1,130,912.19 = 280,590.06 : x
  2. Step 2: Convert to fraction form
    753,904.86/1,130,912.19 = 280,590.06/x
  3. Step 3: Cross multiply
    753,904.86x = 1,130,912.19 × 280,590.06
  4. Step 4: Simplify right side
    753,904.86x = 317,322,719,246.83
  5. Step 5: Solve for x
    x = 317,322,719,246.83/753,904.86
  6. Step 6: Final answer
    x = 420,905.52

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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.