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Finding the Fourth Proportional to 612,591.96, 845,253.02 and 357,893.94

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Solution

The fourth proportional to 612,591.96, 845,253.02 and 357,893.94 is: 493,821.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,591.96 : 845,253.02 = 357,893.94 : x
  2. Step 2: Convert to fraction form
    612,591.96/845,253.02 = 357,893.94/x
  3. Step 3: Cross multiply
    612,591.96x = 845,253.02 × 357,893.94
  4. Step 4: Simplify right side
    612,591.96x = 302,510,933,624.70
  5. Step 5: Solve for x
    x = 302,510,933,624.70/612,591.96
  6. Step 6: Final answer
    x = 493,821.26

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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.