Home / 1,210,207.90-1,815,117.45-368,563.90

Finding the Fourth Proportional to 1,210,207.90, 1,815,117.45 and 368,563.90

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Solution

The fourth proportional to 1,210,207.90, 1,815,117.45 and 368,563.90 is: 552,786.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,207.90 : 1,815,117.45 = 368,563.90 : x
  2. Step 2: Convert to fraction form
    1,210,207.90/1,815,117.45 = 368,563.90/x
  3. Step 3: Cross multiply
    1,210,207.90x = 1,815,117.45 × 368,563.90
  4. Step 4: Simplify right side
    1,210,207.90x = 668,986,766,330.06
  5. Step 5: Solve for x
    x = 668,986,766,330.06/1,210,207.90
  6. Step 6: Final answer
    x = 552,786.65

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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.