Home / 1,289,245.62-1,779,214.32-716,285.79

Finding the Fourth Proportional to 1,289,245.62, 1,779,214.32 and 716,285.79

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Solution

The fourth proportional to 1,289,245.62, 1,779,214.32 and 716,285.79 is: 988,505.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,245.62 : 1,779,214.32 = 716,285.79 : x
  2. Step 2: Convert to fraction form
    1,289,245.62/1,779,214.32 = 716,285.79/x
  3. Step 3: Cross multiply
    1,289,245.62x = 1,779,214.32 × 716,285.79
  4. Step 4: Simplify right side
    1,289,245.62x = 1,274,425,934,780.51
  5. Step 5: Solve for x
    x = 1,274,425,934,780.51/1,289,245.62
  6. Step 6: Final answer
    x = 988,505.15

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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.