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Finding the Fourth Proportional to 403,779.30, 606,252.15 and 304,635.30

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Solution

The fourth proportional to 403,779.30, 606,252.15 and 304,635.30 is: 457,392.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,779.30 : 606,252.15 = 304,635.30 : x
  2. Step 2: Convert to fraction form
    403,779.30/606,252.15 = 304,635.30/x
  3. Step 3: Cross multiply
    403,779.30x = 606,252.15 × 304,635.30
  4. Step 4: Simplify right side
    403,779.30x = 184,685,805,590.90
  5. Step 5: Solve for x
    x = 184,685,805,590.90/403,779.30
  6. Step 6: Final answer
    x = 457,392.95

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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.