Home / 1,539,065.72-2,124,121.66-885,678.32

Finding the Fourth Proportional to 1,539,065.72, 2,124,121.66 and 885,678.32

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Solution

The fourth proportional to 1,539,065.72, 2,124,121.66 and 885,678.32 is: 1,222,357.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539,065.72 : 2,124,121.66 = 885,678.32 : x
  2. Step 2: Convert to fraction form
    1,539,065.72/2,124,121.66 = 885,678.32/x
  3. Step 3: Cross multiply
    1,539,065.72x = 2,124,121.66 × 885,678.32
  4. Step 4: Simplify right side
    1,539,065.72x = 1,881,288,503,304.41
  5. Step 5: Solve for x
    x = 1,881,288,503,304.41/1,539,065.72
  6. Step 6: Final answer
    x = 1,222,357.49

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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.