Home / 1,221,315.68-1,685,383.12-705,052.15

Finding the Fourth Proportional to 1,221,315.68, 1,685,383.12 and 705,052.15

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Solution

The fourth proportional to 1,221,315.68, 1,685,383.12 and 705,052.15 is: 972,953.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,315.68 : 1,685,383.12 = 705,052.15 : x
  2. Step 2: Convert to fraction form
    1,221,315.68/1,685,383.12 = 705,052.15/x
  3. Step 3: Cross multiply
    1,221,315.68x = 1,685,383.12 × 705,052.15
  4. Step 4: Simplify right side
    1,221,315.68x = 1,188,282,992,329.71
  5. Step 5: Solve for x
    x = 1,188,282,992,329.71/1,221,315.68
  6. Step 6: Final answer
    x = 972,953.19

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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.