Home / 756,444.60-1,133,169.30-490,390.20

Finding the Fourth Proportional to 756,444.60, 1,133,169.30 and 490,390.20

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Solution

The fourth proportional to 756,444.60, 1,133,169.30 and 490,390.20 is: 734,614.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,444.60 : 1,133,169.30 = 490,390.20 : x
  2. Step 2: Convert to fraction form
    756,444.60/1,133,169.30 = 490,390.20/x
  3. Step 3: Cross multiply
    756,444.60x = 1,133,169.30 × 490,390.20
  4. Step 4: Simplify right side
    756,444.60x = 555,695,119,660.86
  5. Step 5: Solve for x
    x = 555,695,119,660.86/756,444.60
  6. Step 6: Final answer
    x = 734,614.43

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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.