Home / 1,278,858.64-1,764,825.02-705,898.96

Finding the Fourth Proportional to 1,278,858.64, 1,764,825.02 and 705,898.96

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Solution

The fourth proportional to 1,278,858.64, 1,764,825.02 and 705,898.96 is: 974,140.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,858.64 : 1,764,825.02 = 705,898.96 : x
  2. Step 2: Convert to fraction form
    1,278,858.64/1,764,825.02 = 705,898.96/x
  3. Step 3: Cross multiply
    1,278,858.64x = 1,764,825.02 × 705,898.96
  4. Step 4: Simplify right side
    1,278,858.64x = 1,245,788,146,199.98
  5. Step 5: Solve for x
    x = 1,245,788,146,199.98/1,278,858.64
  6. Step 6: Final answer
    x = 974,140.62

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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.