Home / 1,158,291.26-1,736,211.85-428,345.42

Finding the Fourth Proportional to 1,158,291.26, 1,736,211.85 and 428,345.42

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Solution

The fourth proportional to 1,158,291.26, 1,736,211.85 and 428,345.42 is: 642,065.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158,291.26 : 1,736,211.85 = 428,345.42 : x
  2. Step 2: Convert to fraction form
    1,158,291.26/1,736,211.85 = 428,345.42/x
  3. Step 3: Cross multiply
    1,158,291.26x = 1,736,211.85 × 428,345.42
  4. Step 4: Simplify right side
    1,158,291.26x = 743,698,384,345.30
  5. Step 5: Solve for x
    x = 743,698,384,345.30/1,158,291.26
  6. Step 6: Final answer
    x = 642,065.09

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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.