Home / 1,678,221.70-2,518,316.70-613,371.40

Finding the Fourth Proportional to 1,678,221.70, 2,518,316.70 and 613,371.40

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Solution

The fourth proportional to 1,678,221.70, 2,518,316.70 and 613,371.40 is: 920,416.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,221.70 : 2,518,316.70 = 613,371.40 : x
  2. Step 2: Convert to fraction form
    1,678,221.70/2,518,316.70 = 613,371.40/x
  3. Step 3: Cross multiply
    1,678,221.70x = 2,518,316.70 × 613,371.40
  4. Step 4: Simplify right side
    1,678,221.70x = 1,544,663,439,922.38
  5. Step 5: Solve for x
    x = 1,544,663,439,922.38/1,678,221.70
  6. Step 6: Final answer
    x = 920,416.80

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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.