Home / 1,321,848-1,824,155.10-718,236

Finding the Fourth Proportional to 1,321,848, 1,824,155.10 and 718,236

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Solution

The fourth proportional to 1,321,848, 1,824,155.10 and 718,236 is: 991,168.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,848 : 1,824,155.10 = 718,236 : x
  2. Step 2: Convert to fraction form
    1,321,848/1,824,155.10 = 718,236/x
  3. Step 3: Cross multiply
    1,321,848x = 1,824,155.10 × 718,236
  4. Step 4: Simplify right side
    1,321,848x = 1,310,173,862,403.60
  5. Step 5: Solve for x
    x = 1,310,173,862,403.60/1,321,848
  6. Step 6: Final answer
    x = 991,168.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.