Home / 1,220,168.16-1,829,802.96-421,244.64

Finding the Fourth Proportional to 1,220,168.16, 1,829,802.96 and 421,244.64

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Solution

The fourth proportional to 1,220,168.16, 1,829,802.96 and 421,244.64 is: 631,711.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,168.16 : 1,829,802.96 = 421,244.64 : x
  2. Step 2: Convert to fraction form
    1,220,168.16/1,829,802.96 = 421,244.64/x
  3. Step 3: Cross multiply
    1,220,168.16x = 1,829,802.96 × 421,244.64
  4. Step 4: Simplify right side
    1,220,168.16x = 770,794,689,156.13
  5. Step 5: Solve for x
    x = 770,794,689,156.13/1,220,168.16
  6. Step 6: Final answer
    x = 631,711.85

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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.