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Finding the Fourth Proportional to 659,066.89, 988,244.64 and 299,041.28

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Solution

The fourth proportional to 659,066.89, 988,244.64 and 299,041.28 is: 448,400.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,066.89 : 988,244.64 = 299,041.28 : x
  2. Step 2: Convert to fraction form
    659,066.89/988,244.64 = 299,041.28/x
  3. Step 3: Cross multiply
    659,066.89x = 988,244.64 × 299,041.28
  4. Step 4: Simplify right side
    659,066.89x = 295,525,938,132.92
  5. Step 5: Solve for x
    x = 295,525,938,132.92/659,066.89
  6. Step 6: Final answer
    x = 448,400.52

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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.