Home / 685,798.20-1,026,947.70-545,830.20

Finding the Fourth Proportional to 685,798.20, 1,026,947.70 and 545,830.20

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Solution

The fourth proportional to 685,798.20, 1,026,947.70 and 545,830.20 is: 817,352.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,798.20 : 1,026,947.70 = 545,830.20 : x
  2. Step 2: Convert to fraction form
    685,798.20/1,026,947.70 = 545,830.20/x
  3. Step 3: Cross multiply
    685,798.20x = 1,026,947.70 × 545,830.20
  4. Step 4: Simplify right side
    685,798.20x = 560,539,068,480.54
  5. Step 5: Solve for x
    x = 560,539,068,480.54/685,798.20
  6. Step 6: Final answer
    x = 817,352.78

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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.