Home / 730,128.12-1,092,527.82-430,752.12

Finding the Fourth Proportional to 730,128.12, 1,092,527.82 and 430,752.12

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Solution

The fourth proportional to 730,128.12, 1,092,527.82 and 430,752.12 is: 644,556.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,128.12 : 1,092,527.82 = 430,752.12 : x
  2. Step 2: Convert to fraction form
    730,128.12/1,092,527.82 = 430,752.12/x
  3. Step 3: Cross multiply
    730,128.12x = 1,092,527.82 × 430,752.12
  4. Step 4: Simplify right side
    730,128.12x = 470,608,674,623.98
  5. Step 5: Solve for x
    x = 470,608,674,623.98/730,128.12
  6. Step 6: Final answer
    x = 644,556.29

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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.