Home / 781,328.34-1,078,286.58-437,196.96

Finding the Fourth Proportional to 781,328.34, 1,078,286.58 and 437,196.96

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Solution

The fourth proportional to 781,328.34, 1,078,286.58 and 437,196.96 is: 603,361.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,328.34 : 1,078,286.58 = 437,196.96 : x
  2. Step 2: Convert to fraction form
    781,328.34/1,078,286.58 = 437,196.96/x
  3. Step 3: Cross multiply
    781,328.34x = 1,078,286.58 × 437,196.96
  4. Step 4: Simplify right side
    781,328.34x = 471,423,614,784.80
  5. Step 5: Solve for x
    x = 471,423,614,784.80/781,328.34
  6. Step 6: Final answer
    x = 603,361.72

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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.