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Finding the Fourth Proportional to 950,978.40, 1,426,532.40 and 302,503.20

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Solution

The fourth proportional to 950,978.40, 1,426,532.40 and 302,503.20 is: 453,775.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    950,978.40 : 1,426,532.40 = 302,503.20 : x
  2. Step 2: Convert to fraction form
    950,978.40/1,426,532.40 = 302,503.20/x
  3. Step 3: Cross multiply
    950,978.40x = 1,426,532.40 × 302,503.20
  4. Step 4: Simplify right side
    950,978.40x = 431,530,615,903.68
  5. Step 5: Solve for x
    x = 431,530,615,903.68/950,978.40
  6. Step 6: Final answer
    x = 453,775.41

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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.