Home / 1,421,206.59-1,961,290.76-776,653.95

Finding the Fourth Proportional to 1,421,206.59, 1,961,290.76 and 776,653.95

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Solution

The fourth proportional to 1,421,206.59, 1,961,290.76 and 776,653.95 is: 1,071,796.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,206.59 : 1,961,290.76 = 776,653.95 : x
  2. Step 2: Convert to fraction form
    1,421,206.59/1,961,290.76 = 776,653.95/x
  3. Step 3: Cross multiply
    1,421,206.59x = 1,961,290.76 × 776,653.95
  4. Step 4: Simplify right side
    1,421,206.59x = 1,523,244,215,852.50
  5. Step 5: Solve for x
    x = 1,523,244,215,852.50/1,421,206.59
  6. Step 6: Final answer
    x = 1,071,796.48

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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.