Home / 1,279,916.82-1,920,924.63-649,011.06

Finding the Fourth Proportional to 1,279,916.82, 1,920,924.63 and 649,011.06

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Solution

The fourth proportional to 1,279,916.82, 1,920,924.63 and 649,011.06 is: 974,048.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,916.82 : 1,920,924.63 = 649,011.06 : x
  2. Step 2: Convert to fraction form
    1,279,916.82/1,920,924.63 = 649,011.06/x
  3. Step 3: Cross multiply
    1,279,916.82x = 1,920,924.63 × 649,011.06
  4. Step 4: Simplify right side
    1,279,916.82x = 1,246,701,330,296.41
  5. Step 5: Solve for x
    x = 1,246,701,330,296.41/1,279,916.82
  6. Step 6: Final answer
    x = 974,048.71

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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.