Home / 743,988.67-1,026,784.63-421,664.16

Finding the Fourth Proportional to 743,988.67, 1,026,784.63 and 421,664.16

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Solution

The fourth proportional to 743,988.67, 1,026,784.63 and 421,664.16 is: 581,942.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,988.67 : 1,026,784.63 = 421,664.16 : x
  2. Step 2: Convert to fraction form
    743,988.67/1,026,784.63 = 421,664.16/x
  3. Step 3: Cross multiply
    743,988.67x = 1,026,784.63 × 421,664.16
  4. Step 4: Simplify right side
    743,988.67x = 432,958,276,401.54
  5. Step 5: Solve for x
    x = 432,958,276,401.54/743,988.67
  6. Step 6: Final answer
    x = 581,942.03

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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.