Home / 904,057.82-1,356,086.72-429,303.86

Finding the Fourth Proportional to 904,057.82, 1,356,086.72 and 429,303.86

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Solution

The fourth proportional to 904,057.82, 1,356,086.72 and 429,303.86 is: 643,955.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,057.82 : 1,356,086.72 = 429,303.86 : x
  2. Step 2: Convert to fraction form
    904,057.82/1,356,086.72 = 429,303.86/x
  3. Step 3: Cross multiply
    904,057.82x = 1,356,086.72 × 429,303.86
  4. Step 4: Simplify right side
    904,057.82x = 582,173,257,683.57
  5. Step 5: Solve for x
    x = 582,173,257,683.57/904,057.82
  6. Step 6: Final answer
    x = 643,955.78

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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.