Home / 1,211,564.04-1,671,969.80-667,719.44

Finding the Fourth Proportional to 1,211,564.04, 1,671,969.80 and 667,719.44

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Solution

The fourth proportional to 1,211,564.04, 1,671,969.80 and 667,719.44 is: 921,459.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,564.04 : 1,671,969.80 = 667,719.44 : x
  2. Step 2: Convert to fraction form
    1,211,564.04/1,671,969.80 = 667,719.44/x
  3. Step 3: Cross multiply
    1,211,564.04x = 1,671,969.80 × 667,719.44
  4. Step 4: Simplify right side
    1,211,564.04x = 1,116,406,738,552.91
  5. Step 5: Solve for x
    x = 1,116,406,738,552.91/1,211,564.04
  6. Step 6: Final answer
    x = 921,459.12

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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.