Home / 867,125.40-1,300,785.30-268,081.80

Finding the Fourth Proportional to 867,125.40, 1,300,785.30 and 268,081.80

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Solution

The fourth proportional to 867,125.40, 1,300,785.30 and 268,081.80 is: 402,152.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,125.40 : 1,300,785.30 = 268,081.80 : x
  2. Step 2: Convert to fraction form
    867,125.40/1,300,785.30 = 268,081.80/x
  3. Step 3: Cross multiply
    867,125.40x = 1,300,785.30 × 268,081.80
  4. Step 4: Simplify right side
    867,125.40x = 348,716,864,637.54
  5. Step 5: Solve for x
    x = 348,716,864,637.54/867,125.40
  6. Step 6: Final answer
    x = 402,152.75

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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.