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Finding the Fourth Proportional to 536,557.03, 739,708.82 and 428,029.71

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Solution

The fourth proportional to 536,557.03, 739,708.82 and 428,029.71 is: 590,090.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,557.03 : 739,708.82 = 428,029.71 : x
  2. Step 2: Convert to fraction form
    536,557.03/739,708.82 = 428,029.71/x
  3. Step 3: Cross multiply
    536,557.03x = 739,708.82 × 428,029.71
  4. Step 4: Simplify right side
    536,557.03x = 316,617,349,568.89
  5. Step 5: Solve for x
    x = 316,617,349,568.89/536,557.03
  6. Step 6: Final answer
    x = 590,090.77

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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.