Home / 1,210,918.12-1,816,309.50-369,403.72

Finding the Fourth Proportional to 1,210,918.12, 1,816,309.50 and 369,403.72

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Solution

The fourth proportional to 1,210,918.12, 1,816,309.50 and 369,403.72 is: 554,084.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,918.12 : 1,816,309.50 = 369,403.72 : x
  2. Step 2: Convert to fraction form
    1,210,918.12/1,816,309.50 = 369,403.72/x
  3. Step 3: Cross multiply
    1,210,918.12x = 1,816,309.50 × 369,403.72
  4. Step 4: Simplify right side
    1,210,918.12x = 670,951,485,971.34
  5. Step 5: Solve for x
    x = 670,951,485,971.34/1,210,918.12
  6. Step 6: Final answer
    x = 554,084.93

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1.5x scale

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.