Home / 1,229,021.51-1,843,532.33-387,638.87

Finding the Fourth Proportional to 1,229,021.51, 1,843,532.33 and 387,638.87

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Solution

The fourth proportional to 1,229,021.51, 1,843,532.33 and 387,638.87 is: 581,458.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,021.51 : 1,843,532.33 = 387,638.87 : x
  2. Step 2: Convert to fraction form
    1,229,021.51/1,843,532.33 = 387,638.87/x
  3. Step 3: Cross multiply
    1,229,021.51x = 1,843,532.33 × 387,638.87
  4. Step 4: Simplify right side
    1,229,021.51x = 714,624,778,053.81
  5. Step 5: Solve for x
    x = 714,624,778,053.81/1,229,021.51
  6. Step 6: Final answer
    x = 581,458.32

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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.