Home / 1,281,881.46-1,764,947.16-1,128,815.76

Finding the Fourth Proportional to 1,281,881.46, 1,764,947.16 and 1,128,815.76

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Solution

The fourth proportional to 1,281,881.46, 1,764,947.16 and 1,128,815.76 is: 1,554,200.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,881.46 : 1,764,947.16 = 1,128,815.76 : x
  2. Step 2: Convert to fraction form
    1,281,881.46/1,764,947.16 = 1,128,815.76/x
  3. Step 3: Cross multiply
    1,281,881.46x = 1,764,947.16 × 1,128,815.76
  4. Step 4: Simplify right side
    1,281,881.46x = 1,992,300,169,775.24
  5. Step 5: Solve for x
    x = 1,992,300,169,775.24/1,281,881.46
  6. Step 6: Final answer
    x = 1,554,200.00

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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.