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Finding the Fourth Proportional to 533,115.80, 801,423.30 and 376,429.40

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Solution

The fourth proportional to 533,115.80, 801,423.30 and 376,429.40 is: 565,879.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,115.80 : 801,423.30 = 376,429.40 : x
  2. Step 2: Convert to fraction form
    533,115.80/801,423.30 = 376,429.40/x
  3. Step 3: Cross multiply
    533,115.80x = 801,423.30 × 376,429.40
  4. Step 4: Simplify right side
    533,115.80x = 301,679,291,965.02
  5. Step 5: Solve for x
    x = 301,679,291,965.02/533,115.80
  6. Step 6: Final answer
    x = 565,879.48

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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.