Home / 889,485.30-1,334,264.90-258,399.11

Finding the Fourth Proportional to 889,485.30, 1,334,264.90 and 258,399.11

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Solution

The fourth proportional to 889,485.30, 1,334,264.90 and 258,399.11 is: 387,609.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,485.30 : 1,334,264.90 = 258,399.11 : x
  2. Step 2: Convert to fraction form
    889,485.30/1,334,264.90 = 258,399.11/x
  3. Step 3: Cross multiply
    889,485.30x = 1,334,264.90 × 258,399.11
  4. Step 4: Simplify right side
    889,485.30x = 344,772,864,707.91
  5. Step 5: Solve for x
    x = 344,772,864,707.91/889,485.30
  6. Step 6: Final answer
    x = 387,609.40

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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.