Home / 990,866.50-1,367,350.01-561,149.71

Finding the Fourth Proportional to 990,866.50, 1,367,350.01 and 561,149.71

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Solution

The fourth proportional to 990,866.50, 1,367,350.01 and 561,149.71 is: 774,360.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,866.50 : 1,367,350.01 = 561,149.71 : x
  2. Step 2: Convert to fraction form
    990,866.50/1,367,350.01 = 561,149.71/x
  3. Step 3: Cross multiply
    990,866.50x = 1,367,350.01 × 561,149.71
  4. Step 4: Simplify right side
    990,866.50x = 767,288,054,743.25
  5. Step 5: Solve for x
    x = 767,288,054,743.25/990,866.50
  6. Step 6: Final answer
    x = 774,360.68

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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.