Home / 1,422,908.73-1,963,572.30-778,315.05

Finding the Fourth Proportional to 1,422,908.73, 1,963,572.30 and 778,315.05

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Solution

The fourth proportional to 1,422,908.73, 1,963,572.30 and 778,315.05 is: 1,074,051.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,908.73 : 1,963,572.30 = 778,315.05 : x
  2. Step 2: Convert to fraction form
    1,422,908.73/1,963,572.30 = 778,315.05/x
  3. Step 3: Cross multiply
    1,422,908.73x = 1,963,572.30 × 778,315.05
  4. Step 4: Simplify right side
    1,422,908.73x = 1,528,277,872,853.12
  5. Step 5: Solve for x
    x = 1,528,277,872,853.12/1,422,908.73
  6. Step 6: Final answer
    x = 1,074,051.93

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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.