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Finding the Fourth Proportional to 436,307.40, 654,461.64 and 376,963.56

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Solution

The fourth proportional to 436,307.40, 654,461.64 and 376,963.56 is: 565,445.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,307.40 : 654,461.64 = 376,963.56 : x
  2. Step 2: Convert to fraction form
    436,307.40/654,461.64 = 376,963.56/x
  3. Step 3: Cross multiply
    436,307.40x = 654,461.64 × 376,963.56
  4. Step 4: Simplify right side
    436,307.40x = 246,708,189,697.84
  5. Step 5: Solve for x
    x = 246,708,189,697.84/436,307.40
  6. Step 6: Final answer
    x = 565,445.81

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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.