Home / 1,208,904.69-1,668,235.77-665,005.98

Finding the Fourth Proportional to 1,208,904.69, 1,668,235.77 and 665,005.98

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Solution

The fourth proportional to 1,208,904.69, 1,668,235.77 and 665,005.98 is: 917,679.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,904.69 : 1,668,235.77 = 665,005.98 : x
  2. Step 2: Convert to fraction form
    1,208,904.69/1,668,235.77 = 665,005.98/x
  3. Step 3: Cross multiply
    1,208,904.69x = 1,668,235.77 × 665,005.98
  4. Step 4: Simplify right side
    1,208,904.69x = 1,109,386,763,099.90
  5. Step 5: Solve for x
    x = 1,109,386,763,099.90/1,208,904.69
  6. Step 6: Final answer
    x = 917,679.26

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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.