Home / 1,211,457.08-1,671,821.82-667,612.38

Finding the Fourth Proportional to 1,211,457.08, 1,671,821.82 and 667,612.38

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Solution

The fourth proportional to 1,211,457.08, 1,671,821.82 and 667,612.38 is: 921,311.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,457.08 : 1,671,821.82 = 667,612.38 : x
  2. Step 2: Convert to fraction form
    1,211,457.08/1,671,821.82 = 667,612.38/x
  3. Step 3: Cross multiply
    1,211,457.08x = 1,671,821.82 × 667,612.38
  4. Step 4: Simplify right side
    1,211,457.08x = 1,116,128,944,186.13
  5. Step 5: Solve for x
    x = 1,116,128,944,186.13/1,211,457.08
  6. Step 6: Final answer
    x = 921,311.18

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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.