Home / 727,521.69-1,003,903.14-421,694.01

Finding the Fourth Proportional to 727,521.69, 1,003,903.14 and 421,694.01

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Solution

The fourth proportional to 727,521.69, 1,003,903.14 and 421,694.01 is: 581,893.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,521.69 : 1,003,903.14 = 421,694.01 : x
  2. Step 2: Convert to fraction form
    727,521.69/1,003,903.14 = 421,694.01/x
  3. Step 3: Cross multiply
    727,521.69x = 1,003,903.14 × 421,694.01
  4. Step 4: Simplify right side
    727,521.69x = 423,339,940,758.19
  5. Step 5: Solve for x
    x = 423,339,940,758.19/727,521.69
  6. Step 6: Final answer
    x = 581,893.22

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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.