Home / 1,281,616.74-1,922,624.46-428,424.30

Finding the Fourth Proportional to 1,281,616.74, 1,922,624.46 and 428,424.30

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Solution

The fourth proportional to 1,281,616.74, 1,922,624.46 and 428,424.30 is: 642,703.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,616.74 : 1,922,624.46 = 428,424.30 : x
  2. Step 2: Convert to fraction form
    1,281,616.74/1,922,624.46 = 428,424.30/x
  3. Step 3: Cross multiply
    1,281,616.74x = 1,922,624.46 × 428,424.30
  4. Step 4: Simplify right side
    1,281,616.74x = 823,699,038,438.38
  5. Step 5: Solve for x
    x = 823,699,038,438.38/1,281,616.74
  6. Step 6: Final answer
    x = 642,703.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.