Home / 678,554.80-1,017,832.20-555,674.80

Finding the Fourth Proportional to 678,554.80, 1,017,832.20 and 555,674.80

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Solution

The fourth proportional to 678,554.80, 1,017,832.20 and 555,674.80 is: 833,512.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,554.80 : 1,017,832.20 = 555,674.80 : x
  2. Step 2: Convert to fraction form
    678,554.80/1,017,832.20 = 555,674.80/x
  3. Step 3: Cross multiply
    678,554.80x = 1,017,832.20 × 555,674.80
  4. Step 4: Simplify right side
    678,554.80x = 565,583,704,168.56
  5. Step 5: Solve for x
    x = 565,583,704,168.56/678,554.80
  6. Step 6: Final answer
    x = 833,512.20

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Double scale
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Similar ratio
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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.