Home / 680,025.28-1,019,104.80-430,260.16

Finding the Fourth Proportional to 680,025.28, 1,019,104.80 and 430,260.16

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Solution

The fourth proportional to 680,025.28, 1,019,104.80 and 430,260.16 is: 644,799.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,025.28 : 1,019,104.80 = 430,260.16 : x
  2. Step 2: Convert to fraction form
    680,025.28/1,019,104.80 = 430,260.16/x
  3. Step 3: Cross multiply
    680,025.28x = 1,019,104.80 × 430,260.16
  4. Step 4: Simplify right side
    680,025.28x = 438,480,194,304.77
  5. Step 5: Solve for x
    x = 438,480,194,304.77/680,025.28
  6. Step 6: Final answer
    x = 644,799.84

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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.