Home / 1,181,628.88-1,630,639.52-645,084.88

Finding the Fourth Proportional to 1,181,628.88, 1,630,639.52 and 645,084.88

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Solution

The fourth proportional to 1,181,628.88, 1,630,639.52 and 645,084.88 is: 890,212.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,628.88 : 1,630,639.52 = 645,084.88 : x
  2. Step 2: Convert to fraction form
    1,181,628.88/1,630,639.52 = 645,084.88/x
  3. Step 3: Cross multiply
    1,181,628.88x = 1,630,639.52 × 645,084.88
  4. Step 4: Simplify right side
    1,181,628.88x = 1,051,900,899,082.46
  5. Step 5: Solve for x
    x = 1,051,900,899,082.46/1,181,628.88
  6. Step 6: Final answer
    x = 890,212.58

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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.