Home / 809,806.78-1,117,533.36-470,296.90

Finding the Fourth Proportional to 809,806.78, 1,117,533.36 and 470,296.90

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Solution

The fourth proportional to 809,806.78, 1,117,533.36 and 470,296.90 is: 649,009.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,806.78 : 1,117,533.36 = 470,296.90 : x
  2. Step 2: Convert to fraction form
    809,806.78/1,117,533.36 = 470,296.90/x
  3. Step 3: Cross multiply
    809,806.78x = 1,117,533.36 × 470,296.90
  4. Step 4: Simplify right side
    809,806.78x = 525,572,474,854.58
  5. Step 5: Solve for x
    x = 525,572,474,854.58/809,806.78
  6. Step 6: Final answer
    x = 649,009.72

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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.