Home / 1,095,802.40-1,642,537.20-421,623.20

Finding the Fourth Proportional to 1,095,802.40, 1,642,537.20 and 421,623.20

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Solution

The fourth proportional to 1,095,802.40, 1,642,537.20 and 421,623.20 is: 631,986.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,802.40 : 1,642,537.20 = 421,623.20 : x
  2. Step 2: Convert to fraction form
    1,095,802.40/1,642,537.20 = 421,623.20/x
  3. Step 3: Cross multiply
    1,095,802.40x = 1,642,537.20 × 421,623.20
  4. Step 4: Simplify right side
    1,095,802.40x = 692,531,790,383.04
  5. Step 5: Solve for x
    x = 692,531,790,383.04/1,095,802.40
  6. Step 6: Final answer
    x = 631,986.01

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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.