Home / 1,215,220.69-1,677,004.55-705,955.87

Finding the Fourth Proportional to 1,215,220.69, 1,677,004.55 and 705,955.87

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Solution

The fourth proportional to 1,215,220.69, 1,677,004.55 and 705,955.87 is: 974,219.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,220.69 : 1,677,004.55 = 705,955.87 : x
  2. Step 2: Convert to fraction form
    1,215,220.69/1,677,004.55 = 705,955.87/x
  3. Step 3: Cross multiply
    1,215,220.69x = 1,677,004.55 × 705,955.87
  4. Step 4: Simplify right side
    1,215,220.69x = 1,183,891,206,089.21
  5. Step 5: Solve for x
    x = 1,183,891,206,089.21/1,215,220.69
  6. Step 6: Final answer
    x = 974,219.10

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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.