Home / 1,279,920.32-1,920,929.88-649,014.56

Finding the Fourth Proportional to 1,279,920.32, 1,920,929.88 and 649,014.56

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Solution

The fourth proportional to 1,279,920.32, 1,920,929.88 and 649,014.56 is: 974,053.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,920.32 : 1,920,929.88 = 649,014.56 : x
  2. Step 2: Convert to fraction form
    1,279,920.32/1,920,929.88 = 649,014.56/x
  3. Step 3: Cross multiply
    1,279,920.32x = 1,920,929.88 × 649,014.56
  4. Step 4: Simplify right side
    1,279,920.32x = 1,246,711,460,859.05
  5. Step 5: Solve for x
    x = 1,246,711,460,859.05/1,279,920.32
  6. Step 6: Final answer
    x = 974,053.96

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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.