Home / 756,514.20-1,133,216.10-520,123.80

Finding the Fourth Proportional to 756,514.20, 1,133,216.10 and 520,123.80

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Solution

The fourth proportional to 756,514.20, 1,133,216.10 and 520,123.80 is: 779,116.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,514.20 : 1,133,216.10 = 520,123.80 : x
  2. Step 2: Convert to fraction form
    756,514.20/1,133,216.10 = 520,123.80/x
  3. Step 3: Cross multiply
    756,514.20x = 1,133,216.10 × 520,123.80
  4. Step 4: Simplify right side
    756,514.20x = 589,412,664,153.18
  5. Step 5: Solve for x
    x = 589,412,664,153.18/756,514.20
  6. Step 6: Final answer
    x = 779,116.46

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Double scale
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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.