Home / 1,422,988.16-1,963,770.52-778,393.64

Finding the Fourth Proportional to 1,422,988.16, 1,963,770.52 and 778,393.64

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Solution

The fourth proportional to 1,422,988.16, 1,963,770.52 and 778,393.64 is: 1,074,208.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,988.16 : 1,963,770.52 = 778,393.64 : x
  2. Step 2: Convert to fraction form
    1,422,988.16/1,963,770.52 = 778,393.64/x
  3. Step 3: Cross multiply
    1,422,988.16x = 1,963,770.52 × 778,393.64
  4. Step 4: Simplify right side
    1,422,988.16x = 1,528,586,483,187.49
  5. Step 5: Solve for x
    x = 1,528,586,483,187.49/1,422,988.16
  6. Step 6: Final answer
    x = 1,074,208.86

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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.