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Finding the Fourth Proportional to 817,316.88, 1,225,963 and 367,720.24

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Solution

The fourth proportional to 817,316.88, 1,225,963 and 367,720.24 is: 551,574.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,316.88 : 1,225,963 = 367,720.24 : x
  2. Step 2: Convert to fraction form
    817,316.88/1,225,963 = 367,720.24/x
  3. Step 3: Cross multiply
    817,316.88x = 1,225,963 × 367,720.24
  4. Step 4: Simplify right side
    817,316.88x = 450,811,408,591.12
  5. Step 5: Solve for x
    x = 450,811,408,591.12/817,316.88
  6. Step 6: Final answer
    x = 551,574.82

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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.