Home / 756,042.80-1,134,064.20-569,418.80

Finding the Fourth Proportional to 756,042.80, 1,134,064.20 and 569,418.80

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Solution

The fourth proportional to 756,042.80, 1,134,064.20 and 569,418.80 is: 854,128.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,042.80 : 1,134,064.20 = 569,418.80 : x
  2. Step 2: Convert to fraction form
    756,042.80/1,134,064.20 = 569,418.80/x
  3. Step 3: Cross multiply
    756,042.80x = 1,134,064.20 × 569,418.80
  4. Step 4: Simplify right side
    756,042.80x = 645,757,475,886.96
  5. Step 5: Solve for x
    x = 645,757,475,886.96/756,042.80
  6. Step 6: Final answer
    x = 854,128.20

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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.