Home / 702,964.20-1,054,899.90-387,647.40

Finding the Fourth Proportional to 702,964.20, 1,054,899.90 and 387,647.40

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Solution

The fourth proportional to 702,964.20, 1,054,899.90 and 387,647.40 is: 581,721.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,964.20 : 1,054,899.90 = 387,647.40 : x
  2. Step 2: Convert to fraction form
    702,964.20/1,054,899.90 = 387,647.40/x
  3. Step 3: Cross multiply
    702,964.20x = 1,054,899.90 × 387,647.40
  4. Step 4: Simplify right side
    702,964.20x = 408,929,203,495.26
  5. Step 5: Solve for x
    x = 408,929,203,495.26/702,964.20
  6. Step 6: Final answer
    x = 581,721.24

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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.