Home / 1,422,870.24-1,963,519.16-778,276.48

Finding the Fourth Proportional to 1,422,870.24, 1,963,519.16 and 778,276.48

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Solution

The fourth proportional to 1,422,870.24, 1,963,519.16 and 778,276.48 is: 1,073,998.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,870.24 : 1,963,519.16 = 778,276.48 : x
  2. Step 2: Convert to fraction form
    1,422,870.24/1,963,519.16 = 778,276.48/x
  3. Step 3: Cross multiply
    1,422,870.24x = 1,963,519.16 × 778,276.48
  4. Step 4: Simplify right side
    1,422,870.24x = 1,528,160,780,257.36
  5. Step 5: Solve for x
    x = 1,528,160,780,257.36/1,422,870.24
  6. Step 6: Final answer
    x = 1,073,998.69

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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.