Home / 720,230.40-1,079,685.12-276,664.32

Finding the Fourth Proportional to 720,230.40, 1,079,685.12 and 276,664.32

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Solution

The fourth proportional to 720,230.40, 1,079,685.12 and 276,664.32 is: 414,742.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,230.40 : 1,079,685.12 = 276,664.32 : x
  2. Step 2: Convert to fraction form
    720,230.40/1,079,685.12 = 276,664.32/x
  3. Step 3: Cross multiply
    720,230.40x = 1,079,685.12 × 276,664.32
  4. Step 4: Simplify right side
    720,230.40x = 298,710,349,538.92
  5. Step 5: Solve for x
    x = 298,710,349,538.92/720,230.40
  6. Step 6: Final answer
    x = 414,742.77

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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.