Home / 1,158,294.51-1,736,216.72-428,348.67

Finding the Fourth Proportional to 1,158,294.51, 1,736,216.72 and 428,348.67

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Solution

The fourth proportional to 1,158,294.51, 1,736,216.72 and 428,348.67 is: 642,069.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158,294.51 : 1,736,216.72 = 428,348.67 : x
  2. Step 2: Convert to fraction form
    1,158,294.51/1,736,216.72 = 428,348.67/x
  3. Step 3: Cross multiply
    1,158,294.51x = 1,736,216.72 × 428,348.67
  4. Step 4: Simplify right side
    1,158,294.51x = 743,706,122,843.76
  5. Step 5: Solve for x
    x = 743,706,122,843.76/1,158,294.51
  6. Step 6: Final answer
    x = 642,069.97

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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.