Home / 1,258,354.72-1,887,812.40-459,635.04

Finding the Fourth Proportional to 1,258,354.72, 1,887,812.40 and 459,635.04

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Solution

The fourth proportional to 1,258,354.72, 1,887,812.40 and 459,635.04 is: 689,554.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,354.72 : 1,887,812.40 = 459,635.04 : x
  2. Step 2: Convert to fraction form
    1,258,354.72/1,887,812.40 = 459,635.04/x
  3. Step 3: Cross multiply
    1,258,354.72x = 1,887,812.40 × 459,635.04
  4. Step 4: Simplify right side
    1,258,354.72x = 867,704,727,986.50
  5. Step 5: Solve for x
    x = 867,704,727,986.50/1,258,354.72
  6. Step 6: Final answer
    x = 689,554.95

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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.