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Finding the Fourth Proportional to 491,130.40, 736,004.40 and 363,776.80

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Solution

The fourth proportional to 491,130.40, 736,004.40 and 363,776.80 is: 545,153.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,130.40 : 736,004.40 = 363,776.80 : x
  2. Step 2: Convert to fraction form
    491,130.40/736,004.40 = 363,776.80/x
  3. Step 3: Cross multiply
    491,130.40x = 736,004.40 × 363,776.80
  4. Step 4: Simplify right side
    491,130.40x = 267,741,325,417.92
  5. Step 5: Solve for x
    x = 267,741,325,417.92/491,130.40
  6. Step 6: Final answer
    x = 545,153.23

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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.