Home / 1,225,635.84-1,691,182.08-742,118.40

Finding the Fourth Proportional to 1,225,635.84, 1,691,182.08 and 742,118.40

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Solution

The fourth proportional to 1,225,635.84, 1,691,182.08 and 742,118.40 is: 1,024,005.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,635.84 : 1,691,182.08 = 742,118.40 : x
  2. Step 2: Convert to fraction form
    1,225,635.84/1,691,182.08 = 742,118.40/x
  3. Step 3: Cross multiply
    1,225,635.84x = 1,691,182.08 × 742,118.40
  4. Step 4: Simplify right side
    1,225,635.84x = 1,255,057,339,318.27
  5. Step 5: Solve for x
    x = 1,255,057,339,318.27/1,225,635.84
  6. Step 6: Final answer
    x = 1,024,005.09

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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.