Home / 1,412,607.69-2,118,864.65-613,890

Finding the Fourth Proportional to 1,412,607.69, 2,118,864.65 and 613,890

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Solution

The fourth proportional to 1,412,607.69, 2,118,864.65 and 613,890 is: 920,814.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,607.69 : 2,118,864.65 = 613,890 : x
  2. Step 2: Convert to fraction form
    1,412,607.69/2,118,864.65 = 613,890/x
  3. Step 3: Cross multiply
    1,412,607.69x = 2,118,864.65 × 613,890
  4. Step 4: Simplify right side
    1,412,607.69x = 1,300,749,816,919.05
  5. Step 5: Solve for x
    x = 1,300,749,816,919.05/1,412,607.69
  6. Step 6: Final answer
    x = 920,814.62

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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.