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Finding the Fourth Proportional to 378,437.80, 567,656.70 and 360,005.80

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Solution

The fourth proportional to 378,437.80, 567,656.70 and 360,005.80 is: 540,008.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,437.80 : 567,656.70 = 360,005.80 : x
  2. Step 2: Convert to fraction form
    378,437.80/567,656.70 = 360,005.80/x
  3. Step 3: Cross multiply
    378,437.80x = 567,656.70 × 360,005.80
  4. Step 4: Simplify right side
    378,437.80x = 204,359,704,408.86
  5. Step 5: Solve for x
    x = 204,359,704,408.86/378,437.80
  6. Step 6: Final answer
    x = 540,008.70

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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.