Home / 1,116,864.12-1,675,296.45-780,561.66

Finding the Fourth Proportional to 1,116,864.12, 1,675,296.45 and 780,561.66

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Solution

The fourth proportional to 1,116,864.12, 1,675,296.45 and 780,561.66 is: 1,170,842.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,864.12 : 1,675,296.45 = 780,561.66 : x
  2. Step 2: Convert to fraction form
    1,116,864.12/1,675,296.45 = 780,561.66/x
  3. Step 3: Cross multiply
    1,116,864.12x = 1,675,296.45 × 780,561.66
  4. Step 4: Simplify right side
    1,116,864.12x = 1,307,672,178,004.11
  5. Step 5: Solve for x
    x = 1,307,672,178,004.11/1,116,864.12
  6. Step 6: Final answer
    x = 1,170,842.68

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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.