Home / 727,482.63-1,003,926.32-421,736.27

Finding the Fourth Proportional to 727,482.63, 1,003,926.32 and 421,736.27

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Solution

The fourth proportional to 727,482.63, 1,003,926.32 and 421,736.27 is: 581,996.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,482.63 : 1,003,926.32 = 421,736.27 : x
  2. Step 2: Convert to fraction form
    727,482.63/1,003,926.32 = 421,736.27/x
  3. Step 3: Cross multiply
    727,482.63x = 1,003,926.32 × 421,736.27
  4. Step 4: Simplify right side
    727,482.63x = 423,392,142,605.97
  5. Step 5: Solve for x
    x = 423,392,142,605.97/727,482.63
  6. Step 6: Final answer
    x = 581,996.22

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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.