Home / 1,428,168.96-2,142,284.40-517,432.68

Finding the Fourth Proportional to 1,428,168.96, 2,142,284.40 and 517,432.68

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Solution

The fourth proportional to 1,428,168.96, 2,142,284.40 and 517,432.68 is: 776,160.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,168.96 : 2,142,284.40 = 517,432.68 : x
  2. Step 2: Convert to fraction form
    1,428,168.96/2,142,284.40 = 517,432.68/x
  3. Step 3: Cross multiply
    1,428,168.96x = 2,142,284.40 × 517,432.68
  4. Step 4: Simplify right side
    1,428,168.96x = 1,108,487,958,414.19
  5. Step 5: Solve for x
    x = 1,108,487,958,414.19/1,428,168.96
  6. Step 6: Final answer
    x = 776,160.24

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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.