Home / 1,207,455.90-1,811,165.40-308,890.05

Finding the Fourth Proportional to 1,207,455.90, 1,811,165.40 and 308,890.05

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Solution

The fourth proportional to 1,207,455.90, 1,811,165.40 and 308,890.05 is: 463,330.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,455.90 : 1,811,165.40 = 308,890.05 : x
  2. Step 2: Convert to fraction form
    1,207,455.90/1,811,165.40 = 308,890.05/x
  3. Step 3: Cross multiply
    1,207,455.90x = 1,811,165.40 × 308,890.05
  4. Step 4: Simplify right side
    1,207,455.90x = 559,450,970,964.27
  5. Step 5: Solve for x
    x = 559,450,970,964.27/1,207,455.90
  6. Step 6: Final answer
    x = 463,330.36

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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.