Home / 681,005.40-1,021,508.10-579,528.60

Finding the Fourth Proportional to 681,005.40, 1,021,508.10 and 579,528.60

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Solution

The fourth proportional to 681,005.40, 1,021,508.10 and 579,528.60 is: 869,292.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,005.40 : 1,021,508.10 = 579,528.60 : x
  2. Step 2: Convert to fraction form
    681,005.40/1,021,508.10 = 579,528.60/x
  3. Step 3: Cross multiply
    681,005.40x = 1,021,508.10 × 579,528.60
  4. Step 4: Simplify right side
    681,005.40x = 591,993,159,081.66
  5. Step 5: Solve for x
    x = 591,993,159,081.66/681,005.40
  6. Step 6: Final answer
    x = 869,292.90

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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.