Home / 1,244,431.60-1,866,653.20-434,812.64

Finding the Fourth Proportional to 1,244,431.60, 1,866,653.20 and 434,812.64

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Solution

The fourth proportional to 1,244,431.60, 1,866,653.20 and 434,812.64 is: 652,220.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244,431.60 : 1,866,653.20 = 434,812.64 : x
  2. Step 2: Convert to fraction form
    1,244,431.60/1,866,653.20 = 434,812.64/x
  3. Step 3: Cross multiply
    1,244,431.60x = 1,866,653.20 × 434,812.64
  4. Step 4: Simplify right side
    1,244,431.60x = 811,644,405,856.45
  5. Step 5: Solve for x
    x = 811,644,405,856.45/1,244,431.60
  6. Step 6: Final answer
    x = 652,220.99

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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.