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Finding the Fourth Proportional to 617,150.96, 851,325.36 and 358,998.86

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Solution

The fourth proportional to 617,150.96, 851,325.36 and 358,998.86 is: 495,218.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,150.96 : 851,325.36 = 358,998.86 : x
  2. Step 2: Convert to fraction form
    617,150.96/851,325.36 = 358,998.86/x
  3. Step 3: Cross multiply
    617,150.96x = 851,325.36 × 358,998.86
  4. Step 4: Simplify right side
    617,150.96x = 305,624,833,729.09
  5. Step 5: Solve for x
    x = 305,624,833,729.09/617,150.96
  6. Step 6: Final answer
    x = 495,218.92

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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.