Home / 1,421,277.84-1,961,368.56-776,707.92

Finding the Fourth Proportional to 1,421,277.84, 1,961,368.56 and 776,707.92

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Solution

The fourth proportional to 1,421,277.84, 1,961,368.56 and 776,707.92 is: 1,071,859.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,277.84 : 1,961,368.56 = 776,707.92 : x
  2. Step 2: Convert to fraction form
    1,421,277.84/1,961,368.56 = 776,707.92/x
  3. Step 3: Cross multiply
    1,421,277.84x = 1,961,368.56 × 776,707.92
  4. Step 4: Simplify right side
    1,421,277.84x = 1,523,410,494,591.00
  5. Step 5: Solve for x
    x = 1,523,410,494,591.00/1,421,277.84
  6. Step 6: Final answer
    x = 1,071,859.74

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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.