Home / 1,210,343.32-1,816,637.10-611,725.78

Finding the Fourth Proportional to 1,210,343.32, 1,816,637.10 and 611,725.78

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Solution

The fourth proportional to 1,210,343.32, 1,816,637.10 and 611,725.78 is: 918,155.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,343.32 : 1,816,637.10 = 611,725.78 : x
  2. Step 2: Convert to fraction form
    1,210,343.32/1,816,637.10 = 611,725.78/x
  3. Step 3: Cross multiply
    1,210,343.32x = 1,816,637.10 × 611,725.78
  4. Step 4: Simplify right side
    1,210,343.32x = 1,111,283,746,974.44
  5. Step 5: Solve for x
    x = 1,111,283,746,974.44/1,210,343.32
  6. Step 6: Final answer
    x = 918,155.81

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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.