Home / 680,762.56-1,021,143.36-306,348.16

Finding the Fourth Proportional to 680,762.56, 1,021,143.36 and 306,348.16

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Solution

The fourth proportional to 680,762.56, 1,021,143.36 and 306,348.16 is: 459,522.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,762.56 : 1,021,143.36 = 306,348.16 : x
  2. Step 2: Convert to fraction form
    680,762.56/1,021,143.36 = 306,348.16/x
  3. Step 3: Cross multiply
    680,762.56x = 1,021,143.36 × 306,348.16
  4. Step 4: Simplify right side
    680,762.56x = 312,825,389,432.22
  5. Step 5: Solve for x
    x = 312,825,389,432.22/680,762.56
  6. Step 6: Final answer
    x = 459,522.02

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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.