Home / 727,628.64-1,091,443.04-278,487.30

Finding the Fourth Proportional to 727,628.64, 1,091,443.04 and 278,487.30

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Solution

The fourth proportional to 727,628.64, 1,091,443.04 and 278,487.30 is: 417,730.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,628.64 : 1,091,443.04 = 278,487.30 : x
  2. Step 2: Convert to fraction form
    727,628.64/1,091,443.04 = 278,487.30/x
  3. Step 3: Cross multiply
    727,628.64x = 1,091,443.04 × 278,487.30
  4. Step 4: Simplify right side
    727,628.64x = 303,953,025,313.39
  5. Step 5: Solve for x
    x = 303,953,025,313.39/727,628.64
  6. Step 6: Final answer
    x = 417,730.98

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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.