Home / 1,210,289.25-1,815,131.35-357,191.58

Finding the Fourth Proportional to 1,210,289.25, 1,815,131.35 and 357,191.58

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Solution

The fourth proportional to 1,210,289.25, 1,815,131.35 and 357,191.58 is: 535,698.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,289.25 : 1,815,131.35 = 357,191.58 : x
  2. Step 2: Convert to fraction form
    1,210,289.25/1,815,131.35 = 357,191.58/x
  3. Step 3: Cross multiply
    1,210,289.25x = 1,815,131.35 × 357,191.58
  4. Step 4: Simplify right side
    1,210,289.25x = 648,349,640,058.06
  5. Step 5: Solve for x
    x = 648,349,640,058.06/1,210,289.25
  6. Step 6: Final answer
    x = 535,698.09

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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.