Home / 743,800.80-1,115,701.20-460,365.60

Finding the Fourth Proportional to 743,800.80, 1,115,701.20 and 460,365.60

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Solution

The fourth proportional to 743,800.80, 1,115,701.20 and 460,365.60 is: 690,548.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,800.80 : 1,115,701.20 = 460,365.60 : x
  2. Step 2: Convert to fraction form
    743,800.80/1,115,701.20 = 460,365.60/x
  3. Step 3: Cross multiply
    743,800.80x = 1,115,701.20 × 460,365.60
  4. Step 4: Simplify right side
    743,800.80x = 513,630,452,358.72
  5. Step 5: Solve for x
    x = 513,630,452,358.72/743,800.80
  6. Step 6: Final answer
    x = 690,548.40

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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.