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Finding the Fourth Proportional to 397,692.80, 596,150.40 and 355,702.40

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Solution

The fourth proportional to 397,692.80, 596,150.40 and 355,702.40 is: 533,205.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,692.80 : 596,150.40 = 355,702.40 : x
  2. Step 2: Convert to fraction form
    397,692.80/596,150.40 = 355,702.40/x
  3. Step 3: Cross multiply
    397,692.80x = 596,150.40 × 355,702.40
  4. Step 4: Simplify right side
    397,692.80x = 212,052,128,040.96
  5. Step 5: Solve for x
    x = 212,052,128,040.96/397,692.80
  6. Step 6: Final answer
    x = 533,205.85

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1.5x scale

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.