Home / 1,527,678.36-2,108,202.12-839,406

Finding the Fourth Proportional to 1,527,678.36, 2,108,202.12 and 839,406

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Solution

The fourth proportional to 1,527,678.36, 2,108,202.12 and 839,406 is: 1,158,383.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,527,678.36 : 2,108,202.12 = 839,406 : x
  2. Step 2: Convert to fraction form
    1,527,678.36/2,108,202.12 = 839,406/x
  3. Step 3: Cross multiply
    1,527,678.36x = 2,108,202.12 × 839,406
  4. Step 4: Simplify right side
    1,527,678.36x = 1,769,637,508,740.72
  5. Step 5: Solve for x
    x = 1,769,637,508,740.72/1,527,678.36
  6. Step 6: Final answer
    x = 1,158,383.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.