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Finding the Fourth Proportional to 469,919.78, 648,489.95 and 255,059.89

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Solution

The fourth proportional to 469,919.78, 648,489.95 and 255,059.89 is: 351,983.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,919.78 : 648,489.95 = 255,059.89 : x
  2. Step 2: Convert to fraction form
    469,919.78/648,489.95 = 255,059.89/x
  3. Step 3: Cross multiply
    469,919.78x = 648,489.95 × 255,059.89
  4. Step 4: Simplify right side
    469,919.78x = 165,403,773,373.06
  5. Step 5: Solve for x
    x = 165,403,773,373.06/469,919.78
  6. Step 6: Final answer
    x = 351,983.00

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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.