Home / 990,872.48-1,367,358.32-561,155.73

Finding the Fourth Proportional to 990,872.48, 1,367,358.32 and 561,155.73

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Solution

The fourth proportional to 990,872.48, 1,367,358.32 and 561,155.73 is: 774,369.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,872.48 : 1,367,358.32 = 561,155.73 : x
  2. Step 2: Convert to fraction form
    990,872.48/1,367,358.32 = 561,155.73/x
  3. Step 3: Cross multiply
    990,872.48x = 1,367,358.32 × 561,155.73
  4. Step 4: Simplify right side
    990,872.48x = 767,300,953,425.40
  5. Step 5: Solve for x
    x = 767,300,953,425.40/990,872.48
  6. Step 6: Final answer
    x = 774,369.03

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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.