Home / 1,278,507.47-1,764,382.65-697,762.31

Finding the Fourth Proportional to 1,278,507.47, 1,764,382.65 and 697,762.31

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Solution

The fourth proportional to 1,278,507.47, 1,764,382.65 and 697,762.31 is: 962,935.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,507.47 : 1,764,382.65 = 697,762.31 : x
  2. Step 2: Convert to fraction form
    1,278,507.47/1,764,382.65 = 697,762.31/x
  3. Step 3: Cross multiply
    1,278,507.47x = 1,764,382.65 × 697,762.31
  4. Step 4: Simplify right side
    1,278,507.47x = 1,231,119,713,587.92
  5. Step 5: Solve for x
    x = 1,231,119,713,587.92/1,278,507.47
  6. Step 6: Final answer
    x = 962,935.10

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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.