Home / 1,210,917.12-1,816,308-369,402.72

Finding the Fourth Proportional to 1,210,917.12, 1,816,308 and 369,402.72

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Solution

The fourth proportional to 1,210,917.12, 1,816,308 and 369,402.72 is: 554,083.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,917.12 : 1,816,308 = 369,402.72 : x
  2. Step 2: Convert to fraction form
    1,210,917.12/1,816,308 = 369,402.72/x
  3. Step 3: Cross multiply
    1,210,917.12x = 1,816,308 × 369,402.72
  4. Step 4: Simplify right side
    1,210,917.12x = 670,949,115,557.76
  5. Step 5: Solve for x
    x = 670,949,115,557.76/1,210,917.12
  6. Step 6: Final answer
    x = 554,083.43

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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.