Home / 727,504.63-1,003,956.57-421,758.22

Finding the Fourth Proportional to 727,504.63, 1,003,956.57 and 421,758.22

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Solution

The fourth proportional to 727,504.63, 1,003,956.57 and 421,758.22 is: 582,026.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,504.63 : 1,003,956.57 = 421,758.22 : x
  2. Step 2: Convert to fraction form
    727,504.63/1,003,956.57 = 421,758.22/x
  3. Step 3: Cross multiply
    727,504.63x = 1,003,956.57 × 421,758.22
  4. Step 4: Simplify right side
    727,504.63x = 423,426,935,920.51
  5. Step 5: Solve for x
    x = 423,426,935,920.51/727,504.63
  6. Step 6: Final answer
    x = 582,026.45

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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.