Home / 1,003,403.38-1,384,962.15-621,212.98

Finding the Fourth Proportional to 1,003,403.38, 1,384,962.15 and 621,212.98

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Solution

The fourth proportional to 1,003,403.38, 1,384,962.15 and 621,212.98 is: 857,438.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,003,403.38 : 1,384,962.15 = 621,212.98 : x
  2. Step 2: Convert to fraction form
    1,003,403.38/1,384,962.15 = 621,212.98/x
  3. Step 3: Cross multiply
    1,003,403.38x = 1,384,962.15 × 621,212.98
  4. Step 4: Simplify right side
    1,003,403.38x = 860,356,464,388.71
  5. Step 5: Solve for x
    x = 860,356,464,388.71/1,003,403.38
  6. Step 6: Final answer
    x = 857,438.28

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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.