Home / 1,209,007.46-1,668,430.23-665,131.52

Finding the Fourth Proportional to 1,209,007.46, 1,668,430.23 and 665,131.52

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Solution

The fourth proportional to 1,209,007.46, 1,668,430.23 and 665,131.52 is: 917,881.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,007.46 : 1,668,430.23 = 665,131.52 : x
  2. Step 2: Convert to fraction form
    1,209,007.46/1,668,430.23 = 665,131.52/x
  3. Step 3: Cross multiply
    1,209,007.46x = 1,668,430.23 × 665,131.52
  4. Step 4: Simplify right side
    1,209,007.46x = 1,109,725,534,893.85
  5. Step 5: Solve for x
    x = 1,109,725,534,893.85/1,209,007.46
  6. Step 6: Final answer
    x = 917,881.46

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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.