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Finding the Fourth Proportional to 982,880.72, 1,473,387 and 384,225.68

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Solution

The fourth proportional to 982,880.72, 1,473,387 and 384,225.68 is: 575,973.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,880.72 : 1,473,387 = 384,225.68 : x
  2. Step 2: Convert to fraction form
    982,880.72/1,473,387 = 384,225.68/x
  3. Step 3: Cross multiply
    982,880.72x = 1,473,387 × 384,225.68
  4. Step 4: Simplify right side
    982,880.72x = 566,113,121,978.16
  5. Step 5: Solve for x
    x = 566,113,121,978.16/982,880.72
  6. Step 6: Final answer
    x = 575,973.37

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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.