Home / 1,321,002.64-1,822,983.63-717,390.64

Finding the Fourth Proportional to 1,321,002.64, 1,822,983.63 and 717,390.64

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Solution

The fourth proportional to 1,321,002.64, 1,822,983.63 and 717,390.64 is: 989,999.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,002.64 : 1,822,983.63 = 717,390.64 : x
  2. Step 2: Convert to fraction form
    1,321,002.64/1,822,983.63 = 717,390.64/x
  3. Step 3: Cross multiply
    1,321,002.64x = 1,822,983.63 × 717,390.64
  4. Step 4: Simplify right side
    1,321,002.64x = 1,307,791,393,035.22
  5. Step 5: Solve for x
    x = 1,307,791,393,035.22/1,321,002.64
  6. Step 6: Final answer
    x = 989,999.08

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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.