Home / 917,768.64-1,376,847.36-286,730.04

Finding the Fourth Proportional to 917,768.64, 1,376,847.36 and 286,730.04

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Solution

The fourth proportional to 917,768.64, 1,376,847.36 and 286,730.04 is: 430,155.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,768.64 : 1,376,847.36 = 286,730.04 : x
  2. Step 2: Convert to fraction form
    917,768.64/1,376,847.36 = 286,730.04/x
  3. Step 3: Cross multiply
    917,768.64x = 1,376,847.36 × 286,730.04
  4. Step 4: Simplify right side
    917,768.64x = 394,783,498,606.69
  5. Step 5: Solve for x
    x = 394,783,498,606.69/917,768.64
  6. Step 6: Final answer
    x = 430,155.79

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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.