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Finding the Fourth Proportional to 561,947.08, 775,491.08 and 316,935.04

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Solution

The fourth proportional to 561,947.08, 775,491.08 and 316,935.04 is: 437,372.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,947.08 : 775,491.08 = 316,935.04 : x
  2. Step 2: Convert to fraction form
    561,947.08/775,491.08 = 316,935.04/x
  3. Step 3: Cross multiply
    561,947.08x = 775,491.08 × 316,935.04
  4. Step 4: Simplify right side
    561,947.08x = 245,780,296,459.44
  5. Step 5: Solve for x
    x = 245,780,296,459.44/561,947.08
  6. Step 6: Final answer
    x = 437,372.67

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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.