Home / 756,422.70-1,133,078.85-520,032.30

Finding the Fourth Proportional to 756,422.70, 1,133,078.85 and 520,032.30

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Solution

The fourth proportional to 756,422.70, 1,133,078.85 and 520,032.30 is: 778,979.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,422.70 : 1,133,078.85 = 520,032.30 : x
  2. Step 2: Convert to fraction form
    756,422.70/1,133,078.85 = 520,032.30/x
  3. Step 3: Cross multiply
    756,422.70x = 1,133,078.85 × 520,032.30
  4. Step 4: Simplify right side
    756,422.70x = 589,237,600,446.86
  5. Step 5: Solve for x
    x = 589,237,600,446.86/756,422.70
  6. Step 6: Final answer
    x = 778,979.27

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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.