Home / 756,005.40-1,134,008.10-673,336.80

Finding the Fourth Proportional to 756,005.40, 1,134,008.10 and 673,336.80

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Solution

The fourth proportional to 756,005.40, 1,134,008.10 and 673,336.80 is: 1,010,005.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,005.40 : 1,134,008.10 = 673,336.80 : x
  2. Step 2: Convert to fraction form
    756,005.40/1,134,008.10 = 673,336.80/x
  3. Step 3: Cross multiply
    756,005.40x = 1,134,008.10 × 673,336.80
  4. Step 4: Simplify right side
    756,005.40x = 763,569,385,228.08
  5. Step 5: Solve for x
    x = 763,569,385,228.08/756,005.40
  6. Step 6: Final answer
    x = 1,010,005.20

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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.