Home / 786,590.40-1,180,177.20-313,615.20

Finding the Fourth Proportional to 786,590.40, 1,180,177.20 and 313,615.20

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Solution

The fourth proportional to 786,590.40, 1,180,177.20 and 313,615.20 is: 470,539.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,590.40 : 1,180,177.20 = 313,615.20 : x
  2. Step 2: Convert to fraction form
    786,590.40/1,180,177.20 = 313,615.20/x
  3. Step 3: Cross multiply
    786,590.40x = 1,180,177.20 × 313,615.20
  4. Step 4: Simplify right side
    786,590.40x = 370,121,508,613.44
  5. Step 5: Solve for x
    x = 370,121,508,613.44/786,590.40
  6. Step 6: Final answer
    x = 470,539.06

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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.