Home / 727,482.88-1,003,926.67-421,736.52

Finding the Fourth Proportional to 727,482.88, 1,003,926.67 and 421,736.52

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Solution

The fourth proportional to 727,482.88, 1,003,926.67 and 421,736.52 is: 581,996.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,482.88 : 1,003,926.67 = 421,736.52 : x
  2. Step 2: Convert to fraction form
    727,482.88/1,003,926.67 = 421,736.52/x
  3. Step 3: Cross multiply
    727,482.88x = 1,003,926.67 × 421,736.52
  4. Step 4: Simplify right side
    727,482.88x = 423,392,539,086.65
  5. Step 5: Solve for x
    x = 423,392,539,086.65/727,482.88
  6. Step 6: Final answer
    x = 581,996.57

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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.