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Finding the Fourth Proportional to 478,271.24, 659,965.48 and 294,480.62

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Solution

The fourth proportional to 478,271.24, 659,965.48 and 294,480.62 is: 406,353.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,271.24 : 659,965.48 = 294,480.62 : x
  2. Step 2: Convert to fraction form
    478,271.24/659,965.48 = 294,480.62/x
  3. Step 3: Cross multiply
    478,271.24x = 659,965.48 × 294,480.62
  4. Step 4: Simplify right side
    478,271.24x = 194,347,043,729.00
  5. Step 5: Solve for x
    x = 194,347,043,729.00/478,271.24
  6. Step 6: Final answer
    x = 406,353.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.