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Finding the Fourth Proportional to 660,426.44, 911,484.76 and 370,057.64

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Solution

The fourth proportional to 660,426.44, 911,484.76 and 370,057.64 is: 510,733.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,426.44 : 911,484.76 = 370,057.64 : x
  2. Step 2: Convert to fraction form
    660,426.44/911,484.76 = 370,057.64/x
  3. Step 3: Cross multiply
    660,426.44x = 911,484.76 × 370,057.64
  4. Step 4: Simplify right side
    660,426.44x = 337,301,899,181.57
  5. Step 5: Solve for x
    x = 337,301,899,181.57/660,426.44
  6. Step 6: Final answer
    x = 510,733.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.