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Finding the Fourth Proportional to 586,615.28, 879,893.74 and 320,894.80

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Solution

The fourth proportional to 586,615.28, 879,893.74 and 320,894.80 is: 481,326.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,615.28 : 879,893.74 = 320,894.80 : x
  2. Step 2: Convert to fraction form
    586,615.28/879,893.74 = 320,894.80/x
  3. Step 3: Cross multiply
    586,615.28x = 879,893.74 × 320,894.80
  4. Step 4: Simplify right side
    586,615.28x = 282,353,325,718.55
  5. Step 5: Solve for x
    x = 282,353,325,718.55/586,615.28
  6. Step 6: Final answer
    x = 481,326.24

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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.