Home / 1,617,666.30-2,426,499.45-821,403.90

Finding the Fourth Proportional to 1,617,666.30, 2,426,499.45 and 821,403.90

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Solution

The fourth proportional to 1,617,666.30, 2,426,499.45 and 821,403.90 is: 1,232,105.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617,666.30 : 2,426,499.45 = 821,403.90 : x
  2. Step 2: Convert to fraction form
    1,617,666.30/2,426,499.45 = 821,403.90/x
  3. Step 3: Cross multiply
    1,617,666.30x = 2,426,499.45 × 821,403.90
  4. Step 4: Simplify right side
    1,617,666.30x = 1,993,136,111,577.86
  5. Step 5: Solve for x
    x = 1,993,136,111,577.86/1,617,666.30
  6. Step 6: Final answer
    x = 1,232,105.85

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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.