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Finding the Fourth Proportional to 483,205.60, 724,808.40 and 413,221.60

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Solution

The fourth proportional to 483,205.60, 724,808.40 and 413,221.60 is: 619,832.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,205.60 : 724,808.40 = 413,221.60 : x
  2. Step 2: Convert to fraction form
    483,205.60/724,808.40 = 413,221.60/x
  3. Step 3: Cross multiply
    483,205.60x = 724,808.40 × 413,221.60
  4. Step 4: Simplify right side
    483,205.60x = 299,506,486,741.44
  5. Step 5: Solve for x
    x = 299,506,486,741.44/483,205.60
  6. Step 6: Final answer
    x = 619,832.40

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Similar ratio
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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.