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Finding the Fourth Proportional to 570,204.63, 786,690.14 and 328,480.97

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Solution

The fourth proportional to 570,204.63, 786,690.14 and 328,480.97 is: 453,192.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,204.63 : 786,690.14 = 328,480.97 : x
  2. Step 2: Convert to fraction form
    570,204.63/786,690.14 = 328,480.97/x
  3. Step 3: Cross multiply
    570,204.63x = 786,690.14 × 328,480.97
  4. Step 4: Simplify right side
    570,204.63x = 258,412,734,700.78
  5. Step 5: Solve for x
    x = 258,412,734,700.78/570,204.63
  6. Step 6: Final answer
    x = 453,192.98

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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.