Home / 1,278,812.61-1,764,804.14-698,070.17

Finding the Fourth Proportional to 1,278,812.61, 1,764,804.14 and 698,070.17

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Solution

The fourth proportional to 1,278,812.61, 1,764,804.14 and 698,070.17 is: 963,360.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,812.61 : 1,764,804.14 = 698,070.17 : x
  2. Step 2: Convert to fraction form
    1,278,812.61/1,764,804.14 = 698,070.17/x
  3. Step 3: Cross multiply
    1,278,812.61x = 1,764,804.14 × 698,070.17
  4. Step 4: Simplify right side
    1,278,812.61x = 1,231,957,113,712.13
  5. Step 5: Solve for x
    x = 1,231,957,113,712.13/1,278,812.61
  6. Step 6: Final answer
    x = 963,360.15

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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.