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Finding the Fourth Proportional to 768,184.32, 1,059,798.72 and 481,204.80

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Solution

The fourth proportional to 768,184.32, 1,059,798.72 and 481,204.80 is: 663,877.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,184.32 : 1,059,798.72 = 481,204.80 : x
  2. Step 2: Convert to fraction form
    768,184.32/1,059,798.72 = 481,204.80/x
  3. Step 3: Cross multiply
    768,184.32x = 1,059,798.72 × 481,204.80
  4. Step 4: Simplify right side
    768,184.32x = 509,980,231,097.86
  5. Step 5: Solve for x
    x = 509,980,231,097.86/768,184.32
  6. Step 6: Final answer
    x = 663,877.43

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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.