Home / 990,998.34-1,366,276.37-715,124.67

Finding the Fourth Proportional to 990,998.34, 1,366,276.37 and 715,124.67

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Solution

The fourth proportional to 990,998.34, 1,366,276.37 and 715,124.67 is: 985,932.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,998.34 : 1,366,276.37 = 715,124.67 : x
  2. Step 2: Convert to fraction form
    990,998.34/1,366,276.37 = 715,124.67/x
  3. Step 3: Cross multiply
    990,998.34x = 1,366,276.37 × 715,124.67
  4. Step 4: Simplify right side
    990,998.34x = 977,057,934,649.43
  5. Step 5: Solve for x
    x = 977,057,934,649.43/990,998.34
  6. Step 6: Final answer
    x = 985,932.97

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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.