Home / 1,218,510-1,681,310.52-788,730.48

Finding the Fourth Proportional to 1,218,510, 1,681,310.52 and 788,730.48

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Solution

The fourth proportional to 1,218,510, 1,681,310.52 and 788,730.48 is: 1,088,297.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,510 : 1,681,310.52 = 788,730.48 : x
  2. Step 2: Convert to fraction form
    1,218,510/1,681,310.52 = 788,730.48/x
  3. Step 3: Cross multiply
    1,218,510x = 1,681,310.52 × 788,730.48
  4. Step 4: Simplify right side
    1,218,510x = 1,326,100,853,468.65
  5. Step 5: Solve for x
    x = 1,326,100,853,468.65/1,218,510
  6. Step 6: Final answer
    x = 1,088,297.06

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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.