Home / 1,422,591.54-1,963,148.85-778,009.74

Finding the Fourth Proportional to 1,422,591.54, 1,963,148.85 and 778,009.74

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Solution

The fourth proportional to 1,422,591.54, 1,963,148.85 and 778,009.74 is: 1,073,638.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,591.54 : 1,963,148.85 = 778,009.74 : x
  2. Step 2: Convert to fraction form
    1,422,591.54/1,963,148.85 = 778,009.74/x
  3. Step 3: Cross multiply
    1,422,591.54x = 1,963,148.85 × 778,009.74
  4. Step 4: Simplify right side
    1,422,591.54x = 1,527,348,926,369.80
  5. Step 5: Solve for x
    x = 1,527,348,926,369.80/1,422,591.54
  6. Step 6: Final answer
    x = 1,073,638.42

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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.