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Finding the Fourth Proportional to 612,601.89, 845,266.72 and 357,903.87

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Solution

The fourth proportional to 612,601.89, 845,266.72 and 357,903.87 is: 493,834.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,601.89 : 845,266.72 = 357,903.87 : x
  2. Step 2: Convert to fraction form
    612,601.89/845,266.72 = 357,903.87/x
  3. Step 3: Cross multiply
    612,601.89x = 845,266.72 × 357,903.87
  4. Step 4: Simplify right side
    612,601.89x = 302,524,230,270.21
  5. Step 5: Solve for x
    x = 302,524,230,270.21/612,601.89
  6. Step 6: Final answer
    x = 493,834.96

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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.