Home / 684,368.40-1,027,135.80-305,871.60

Finding the Fourth Proportional to 684,368.40, 1,027,135.80 and 305,871.60

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Solution

The fourth proportional to 684,368.40, 1,027,135.80 and 305,871.60 is: 459,068.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,368.40 : 1,027,135.80 = 305,871.60 : x
  2. Step 2: Convert to fraction form
    684,368.40/1,027,135.80 = 305,871.60/x
  3. Step 3: Cross multiply
    684,368.40x = 1,027,135.80 × 305,871.60
  4. Step 4: Simplify right side
    684,368.40x = 314,171,670,563.28
  5. Step 5: Solve for x
    x = 314,171,670,563.28/684,368.40
  6. Step 6: Final answer
    x = 459,068.06

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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.