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Finding the Fourth Proportional to 488,444.60, 673,707.12 and 304,775.64

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Solution

The fourth proportional to 488,444.60, 673,707.12 and 304,775.64 is: 420,374.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,444.60 : 673,707.12 = 304,775.64 : x
  2. Step 2: Convert to fraction form
    488,444.60/673,707.12 = 304,775.64/x
  3. Step 3: Cross multiply
    488,444.60x = 673,707.12 × 304,775.64
  4. Step 4: Simplify right side
    488,444.60x = 205,329,518,670.56
  5. Step 5: Solve for x
    x = 205,329,518,670.56/488,444.60
  6. Step 6: Final answer
    x = 420,374.22

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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.