Home / 1,216,458.40-1,678,940.40-707,234.08

Finding the Fourth Proportional to 1,216,458.40, 1,678,940.40 and 707,234.08

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Solution

The fourth proportional to 1,216,458.40, 1,678,940.40 and 707,234.08 is: 976,115.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,458.40 : 1,678,940.40 = 707,234.08 : x
  2. Step 2: Convert to fraction form
    1,216,458.40/1,678,940.40 = 707,234.08/x
  3. Step 3: Cross multiply
    1,216,458.40x = 1,678,940.40 × 707,234.08
  4. Step 4: Simplify right side
    1,216,458.40x = 1,187,403,869,168.83
  5. Step 5: Solve for x
    x = 1,187,403,869,168.83/1,216,458.40
  6. Step 6: Final answer
    x = 976,115.48

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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.