Home / 889,396.77-1,331,944.37-509,164.27

Finding the Fourth Proportional to 889,396.77, 1,331,944.37 and 509,164.27

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Solution

The fourth proportional to 889,396.77, 1,331,944.37 and 509,164.27 is: 762,515.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,396.77 : 1,331,944.37 = 509,164.27 : x
  2. Step 2: Convert to fraction form
    889,396.77/1,331,944.37 = 509,164.27/x
  3. Step 3: Cross multiply
    889,396.77x = 1,331,944.37 × 509,164.27
  4. Step 4: Simplify right side
    889,396.77x = 678,178,482,831.66
  5. Step 5: Solve for x
    x = 678,178,482,831.66/889,396.77
  6. Step 6: Final answer
    x = 762,515.12

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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.