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Finding the Fourth Proportional to 536,557.53, 739,709.50 and 428,030.21

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Solution

The fourth proportional to 536,557.53, 739,709.50 and 428,030.21 is: 590,091.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,557.53 : 739,709.50 = 428,030.21 : x
  2. Step 2: Convert to fraction form
    536,557.53/739,709.50 = 428,030.21/x
  3. Step 3: Cross multiply
    536,557.53x = 739,709.50 × 428,030.21
  4. Step 4: Simplify right side
    536,557.53x = 316,618,012,624.00
  5. Step 5: Solve for x
    x = 316,618,012,624.00/536,557.53
  6. Step 6: Final answer
    x = 590,091.45

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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.