Home / 1,312,905.78-1,969,690.77-366,275.79

Finding the Fourth Proportional to 1,312,905.78, 1,969,690.77 and 366,275.79

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Solution

The fourth proportional to 1,312,905.78, 1,969,690.77 and 366,275.79 is: 549,506.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,905.78 : 1,969,690.77 = 366,275.79 : x
  2. Step 2: Convert to fraction form
    1,312,905.78/1,969,690.77 = 366,275.79/x
  3. Step 3: Cross multiply
    1,312,905.78x = 1,969,690.77 × 366,275.79
  4. Step 4: Simplify right side
    1,312,905.78x = 721,450,042,837.46
  5. Step 5: Solve for x
    x = 721,450,042,837.46/1,312,905.78
  6. Step 6: Final answer
    x = 549,506.33

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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.