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Finding the Fourth Proportional to 329,686.61, 491,567.38 and 301,536.47

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Solution

The fourth proportional to 329,686.61, 491,567.38 and 301,536.47 is: 449,595.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,686.61 : 491,567.38 = 301,536.47 : x
  2. Step 2: Convert to fraction form
    329,686.61/491,567.38 = 301,536.47/x
  3. Step 3: Cross multiply
    329,686.61x = 491,567.38 × 301,536.47
  4. Step 4: Simplify right side
    329,686.61x = 148,225,494,703.57
  5. Step 5: Solve for x
    x = 148,225,494,703.57/329,686.61
  6. Step 6: Final answer
    x = 449,595.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.