Home / 1,209,012.58-1,668,371.06-665,059.91

Finding the Fourth Proportional to 1,209,012.58, 1,668,371.06 and 665,059.91

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Solution

The fourth proportional to 1,209,012.58, 1,668,371.06 and 665,059.91 is: 917,746.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,012.58 : 1,668,371.06 = 665,059.91 : x
  2. Step 2: Convert to fraction form
    1,209,012.58/1,668,371.06 = 665,059.91/x
  3. Step 3: Cross multiply
    1,209,012.58x = 1,668,371.06 × 665,059.91
  4. Step 4: Simplify right side
    1,209,012.58x = 1,109,566,703,684.91
  5. Step 5: Solve for x
    x = 1,109,566,703,684.91/1,209,012.58
  6. Step 6: Final answer
    x = 917,746.21

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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.