Home / 695,309.80-1,042,964.70-648,308.20

Finding the Fourth Proportional to 695,309.80, 1,042,964.70 and 648,308.20

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Solution

The fourth proportional to 695,309.80, 1,042,964.70 and 648,308.20 is: 972,462.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,309.80 : 1,042,964.70 = 648,308.20 : x
  2. Step 2: Convert to fraction form
    695,309.80/1,042,964.70 = 648,308.20/x
  3. Step 3: Cross multiply
    695,309.80x = 1,042,964.70 × 648,308.20
  4. Step 4: Simplify right side
    695,309.80x = 676,162,567,320.54
  5. Step 5: Solve for x
    x = 676,162,567,320.54/695,309.80
  6. Step 6: Final answer
    x = 972,462.30

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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.