Home / 705,442.16-1,057,438.46-278,804.64

Finding the Fourth Proportional to 705,442.16, 1,057,438.46 and 278,804.64

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Solution

The fourth proportional to 705,442.16, 1,057,438.46 and 278,804.64 is: 417,920.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,442.16 : 1,057,438.46 = 278,804.64 : x
  2. Step 2: Convert to fraction form
    705,442.16/1,057,438.46 = 278,804.64/x
  3. Step 3: Cross multiply
    705,442.16x = 1,057,438.46 × 278,804.64
  4. Step 4: Simplify right side
    705,442.16x = 294,818,749,162.45
  5. Step 5: Solve for x
    x = 294,818,749,162.45/705,442.16
  6. Step 6: Final answer
    x = 417,920.51

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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.