Home / 1,210,862.20-1,816,379.70-369,412.60

Finding the Fourth Proportional to 1,210,862.20, 1,816,379.70 and 369,412.60

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Solution

The fourth proportional to 1,210,862.20, 1,816,379.70 and 369,412.60 is: 554,145.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,862.20 : 1,816,379.70 = 369,412.60 : x
  2. Step 2: Convert to fraction form
    1,210,862.20/1,816,379.70 = 369,412.60/x
  3. Step 3: Cross multiply
    1,210,862.20x = 1,816,379.70 × 369,412.60
  4. Step 4: Simplify right side
    1,210,862.20x = 670,993,547,564.22
  5. Step 5: Solve for x
    x = 670,993,547,564.22/1,210,862.20
  6. Step 6: Final answer
    x = 554,145.26

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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.