Home / 727,385.14-1,003,711.89-421,467.58

Finding the Fourth Proportional to 727,385.14, 1,003,711.89 and 421,467.58

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Solution

The fourth proportional to 727,385.14, 1,003,711.89 and 421,467.58 is: 581,579.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,385.14 : 1,003,711.89 = 421,467.58 : x
  2. Step 2: Convert to fraction form
    727,385.14/1,003,711.89 = 421,467.58/x
  3. Step 3: Cross multiply
    727,385.14x = 1,003,711.89 × 421,467.58
  4. Step 4: Simplify right side
    727,385.14x = 423,032,021,295.53
  5. Step 5: Solve for x
    x = 423,032,021,295.53/727,385.14
  6. Step 6: Final answer
    x = 581,579.14

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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.