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Finding the Fourth Proportional to 453,321.70, 679,982.55 and 404,332.90

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Solution

The fourth proportional to 453,321.70, 679,982.55 and 404,332.90 is: 606,499.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,321.70 : 679,982.55 = 404,332.90 : x
  2. Step 2: Convert to fraction form
    453,321.70/679,982.55 = 404,332.90/x
  3. Step 3: Cross multiply
    453,321.70x = 679,982.55 × 404,332.90
  4. Step 4: Simplify right side
    453,321.70x = 274,939,316,390.90
  5. Step 5: Solve for x
    x = 274,939,316,390.90/453,321.70
  6. Step 6: Final answer
    x = 606,499.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.