Home / 785,322.27-1,178,043.08-305,343.86

Finding the Fourth Proportional to 785,322.27, 1,178,043.08 and 305,343.86

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Solution

The fourth proportional to 785,322.27, 1,178,043.08 and 305,343.86 is: 458,038.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,322.27 : 1,178,043.08 = 305,343.86 : x
  2. Step 2: Convert to fraction form
    785,322.27/1,178,043.08 = 305,343.86/x
  3. Step 3: Cross multiply
    785,322.27x = 1,178,043.08 × 305,343.86
  4. Step 4: Simplify right side
    785,322.27x = 359,708,213,876.55
  5. Step 5: Solve for x
    x = 359,708,213,876.55/785,322.27
  6. Step 6: Final answer
    x = 458,038.98

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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.