Home / 389,699.10-584,986.05-301,344.30

Finding the Fourth Proportional to 389,699.10, 584,986.05 and 301,344.30

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Solution

The fourth proportional to 389,699.10, 584,986.05 and 301,344.30 is: 452,354.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,699.10 : 584,986.05 = 301,344.30 : x
  2. Step 2: Convert to fraction form
    389,699.10/584,986.05 = 301,344.30/x
  3. Step 3: Cross multiply
    389,699.10x = 584,986.05 × 301,344.30
  4. Step 4: Simplify right side
    389,699.10x = 176,282,211,747.02
  5. Step 5: Solve for x
    x = 176,282,211,747.02/389,699.10
  6. Step 6: Final answer
    x = 452,354.68

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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.