Home / 2,672,320.40-4,008,091.80-778,864.40

Finding the Fourth Proportional to 2,672,320.40, 4,008,091.80 and 778,864.40

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Solution

The fourth proportional to 2,672,320.40, 4,008,091.80 and 778,864.40 is: 1,168,183.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672,320.40 : 4,008,091.80 = 778,864.40 : x
  2. Step 2: Convert to fraction form
    2,672,320.40/4,008,091.80 = 778,864.40/x
  3. Step 3: Cross multiply
    2,672,320.40x = 4,008,091.80 × 778,864.40
  4. Step 4: Simplify right side
    2,672,320.40x = 3,121,760,014,951.92
  5. Step 5: Solve for x
    x = 3,121,760,014,951.92/2,672,320.40
  6. Step 6: Final answer
    x = 1,168,183.28

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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.