Home / 1,095,885.24-1,643,055.12-421,399.86

Finding the Fourth Proportional to 1,095,885.24, 1,643,055.12 and 421,399.86

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Solution

The fourth proportional to 1,095,885.24, 1,643,055.12 and 421,399.86 is: 631,802.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,885.24 : 1,643,055.12 = 421,399.86 : x
  2. Step 2: Convert to fraction form
    1,095,885.24/1,643,055.12 = 421,399.86/x
  3. Step 3: Cross multiply
    1,095,885.24x = 1,643,055.12 × 421,399.86
  4. Step 4: Simplify right side
    1,095,885.24x = 692,383,197,540.28
  5. Step 5: Solve for x
    x = 692,383,197,540.28/1,095,885.24
  6. Step 6: Final answer
    x = 631,802.65

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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.