Home / 530,421.20-795,631.80-320,469.20

Finding the Fourth Proportional to 530,421.20, 795,631.80 and 320,469.20

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Solution

The fourth proportional to 530,421.20, 795,631.80 and 320,469.20 is: 480,703.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,421.20 : 795,631.80 = 320,469.20 : x
  2. Step 2: Convert to fraction form
    530,421.20/795,631.80 = 320,469.20/x
  3. Step 3: Cross multiply
    530,421.20x = 795,631.80 × 320,469.20
  4. Step 4: Simplify right side
    530,421.20x = 254,975,486,440.56
  5. Step 5: Solve for x
    x = 254,975,486,440.56/530,421.20
  6. Step 6: Final answer
    x = 480,703.80

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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.