Home / 1,003,328.60-1,384,014.40-640,343.32

Finding the Fourth Proportional to 1,003,328.60, 1,384,014.40 and 640,343.32

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Solution

The fourth proportional to 1,003,328.60, 1,384,014.40 and 640,343.32 is: 883,304.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,003,328.60 : 1,384,014.40 = 640,343.32 : x
  2. Step 2: Convert to fraction form
    1,003,328.60/1,384,014.40 = 640,343.32/x
  3. Step 3: Cross multiply
    1,003,328.60x = 1,384,014.40 × 640,343.32
  4. Step 4: Simplify right side
    1,003,328.60x = 886,244,378,548.00
  5. Step 5: Solve for x
    x = 886,244,378,548.00/1,003,328.60
  6. Step 6: Final answer
    x = 883,304.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.