Home / 1,368,815.04-1,888,668-765,182.40

Finding the Fourth Proportional to 1,368,815.04, 1,888,668 and 765,182.40

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Solution

The fourth proportional to 1,368,815.04, 1,888,668 and 765,182.40 is: 1,055,785.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,815.04 : 1,888,668 = 765,182.40 : x
  2. Step 2: Convert to fraction form
    1,368,815.04/1,888,668 = 765,182.40/x
  3. Step 3: Cross multiply
    1,368,815.04x = 1,888,668 × 765,182.40
  4. Step 4: Simplify right side
    1,368,815.04x = 1,445,175,513,043.20
  5. Step 5: Solve for x
    x = 1,445,175,513,043.20/1,368,815.04
  6. Step 6: Final answer
    x = 1,055,785.82

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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.