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Finding the Fourth Proportional to 612,590.96, 845,251.64 and 357,892.94

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Solution

The fourth proportional to 612,590.96, 845,251.64 and 357,892.94 is: 493,819.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,590.96 : 845,251.64 = 357,892.94 : x
  2. Step 2: Convert to fraction form
    612,590.96/845,251.64 = 357,892.94/x
  3. Step 3: Cross multiply
    612,590.96x = 845,251.64 × 357,892.94
  4. Step 4: Simplify right side
    612,590.96x = 302,509,595,277.78
  5. Step 5: Solve for x
    x = 302,509,595,277.78/612,590.96
  6. Step 6: Final answer
    x = 493,819.88

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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.