Home / 917,619.40-1,376,429.10-903,622.60

Finding the Fourth Proportional to 917,619.40, 1,376,429.10 and 903,622.60

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Solution

The fourth proportional to 917,619.40, 1,376,429.10 and 903,622.60 is: 1,355,433.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,619.40 : 1,376,429.10 = 903,622.60 : x
  2. Step 2: Convert to fraction form
    917,619.40/1,376,429.10 = 903,622.60/x
  3. Step 3: Cross multiply
    917,619.40x = 1,376,429.10 × 903,622.60
  4. Step 4: Simplify right side
    917,619.40x = 1,243,772,442,057.66
  5. Step 5: Solve for x
    x = 1,243,772,442,057.66/917,619.40
  6. Step 6: Final answer
    x = 1,355,433.90

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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.