Home / 678,259.12-1,017,378.32-229,295.38

Finding the Fourth Proportional to 678,259.12, 1,017,378.32 and 229,295.38

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Solution

The fourth proportional to 678,259.12, 1,017,378.32 and 229,295.38 is: 343,939.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,259.12 : 1,017,378.32 = 229,295.38 : x
  2. Step 2: Convert to fraction form
    678,259.12/1,017,378.32 = 229,295.38/x
  3. Step 3: Cross multiply
    678,259.12x = 1,017,378.32 × 229,295.38
  4. Step 4: Simplify right side
    678,259.12x = 233,280,148,488.16
  5. Step 5: Solve for x
    x = 233,280,148,488.16/678,259.12
  6. Step 6: Final answer
    x = 343,939.57

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1.5x scale

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.