Home / 678,230.40-1,017,507.60-204,920.40

Finding the Fourth Proportional to 678,230.40, 1,017,507.60 and 204,920.40

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Solution

The fourth proportional to 678,230.40, 1,017,507.60 and 204,920.40 is: 307,429.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,230.40 : 1,017,507.60 = 204,920.40 : x
  2. Step 2: Convert to fraction form
    678,230.40/1,017,507.60 = 204,920.40/x
  3. Step 3: Cross multiply
    678,230.40x = 1,017,507.60 × 204,920.40
  4. Step 4: Simplify right side
    678,230.40x = 208,508,064,395.04
  5. Step 5: Solve for x
    x = 208,508,064,395.04/678,230.40
  6. Step 6: Final answer
    x = 307,429.55

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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.