Home / 727,159.80-1,003,470.96-421,277.88

Finding the Fourth Proportional to 727,159.80, 1,003,470.96 and 421,277.88

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Solution

The fourth proportional to 727,159.80, 1,003,470.96 and 421,277.88 is: 581,357.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,159.80 : 1,003,470.96 = 421,277.88 : x
  2. Step 2: Convert to fraction form
    727,159.80/1,003,470.96 = 421,277.88/x
  3. Step 3: Cross multiply
    727,159.80x = 1,003,470.96 × 421,277.88
  4. Step 4: Simplify right side
    727,159.80x = 422,740,118,670.37
  5. Step 5: Solve for x
    x = 422,740,118,670.37/727,159.80
  6. Step 6: Final answer
    x = 581,357.93

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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.