Home / 786,293.46-1,177,711.38-649,810.71

Finding the Fourth Proportional to 786,293.46, 1,177,711.38 and 649,810.71

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Solution

The fourth proportional to 786,293.46, 1,177,711.38 and 649,810.71 is: 973,287.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,293.46 : 1,177,711.38 = 649,810.71 : x
  2. Step 2: Convert to fraction form
    786,293.46/1,177,711.38 = 649,810.71/x
  3. Step 3: Cross multiply
    786,293.46x = 1,177,711.38 × 649,810.71
  4. Step 4: Simplify right side
    786,293.46x = 765,289,468,012.88
  5. Step 5: Solve for x
    x = 765,289,468,012.88/786,293.46
  6. Step 6: Final answer
    x = 973,287.34

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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.