Home / 1,422,963.86-1,963,648.24-778,370.18

Finding the Fourth Proportional to 1,422,963.86, 1,963,648.24 and 778,370.18

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Solution

The fourth proportional to 1,422,963.86, 1,963,648.24 and 778,370.18 is: 1,074,127.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,963.86 : 1,963,648.24 = 778,370.18 : x
  2. Step 2: Convert to fraction form
    1,422,963.86/1,963,648.24 = 778,370.18/x
  3. Step 3: Cross multiply
    1,422,963.86x = 1,963,648.24 × 778,370.18
  4. Step 4: Simplify right side
    1,422,963.86x = 1,528,445,222,261.32
  5. Step 5: Solve for x
    x = 1,528,445,222,261.32/1,422,963.86
  6. Step 6: Final answer
    x = 1,074,127.93

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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.