Home / 807,431.04-1,212,217.92-689,857.92

Finding the Fourth Proportional to 807,431.04, 1,212,217.92 and 689,857.92

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Solution

The fourth proportional to 807,431.04, 1,212,217.92 and 689,857.92 is: 1,035,702.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,431.04 : 1,212,217.92 = 689,857.92 : x
  2. Step 2: Convert to fraction form
    807,431.04/1,212,217.92 = 689,857.92/x
  3. Step 3: Cross multiply
    807,431.04x = 1,212,217.92 × 689,857.92
  4. Step 4: Simplify right side
    807,431.04x = 836,258,132,877.93
  5. Step 5: Solve for x
    x = 836,258,132,877.93/807,431.04
  6. Step 6: Final answer
    x = 1,035,702.24

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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.