Home / 673,781.60-1,010,672.40-434,633.15

Finding the Fourth Proportional to 673,781.60, 1,010,672.40 and 434,633.15

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Solution

The fourth proportional to 673,781.60, 1,010,672.40 and 434,633.15 is: 651,949.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,781.60 : 1,010,672.40 = 434,633.15 : x
  2. Step 2: Convert to fraction form
    673,781.60/1,010,672.40 = 434,633.15/x
  3. Step 3: Cross multiply
    673,781.60x = 1,010,672.40 × 434,633.15
  4. Step 4: Simplify right side
    673,781.60x = 439,271,728,830.06
  5. Step 5: Solve for x
    x = 439,271,728,830.06/673,781.60
  6. Step 6: Final answer
    x = 651,949.73

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Double scale
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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.