Home / 1,389,924-2,084,886-392,677.92

Finding the Fourth Proportional to 1,389,924, 2,084,886 and 392,677.92

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Solution

The fourth proportional to 1,389,924, 2,084,886 and 392,677.92 is: 589,016.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,924 : 2,084,886 = 392,677.92 : x
  2. Step 2: Convert to fraction form
    1,389,924/2,084,886 = 392,677.92/x
  3. Step 3: Cross multiply
    1,389,924x = 2,084,886 × 392,677.92
  4. Step 4: Simplify right side
    1,389,924x = 818,688,697,917.12
  5. Step 5: Solve for x
    x = 818,688,697,917.12/1,389,924
  6. Step 6: Final answer
    x = 589,016.88

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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.