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Finding the Fourth Proportional to 647,562.43, 893,614.02 and 357,185.53

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Solution

The fourth proportional to 647,562.43, 893,614.02 and 357,185.53 is: 492,903.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,562.43 : 893,614.02 = 357,185.53 : x
  2. Step 2: Convert to fraction form
    647,562.43/893,614.02 = 357,185.53/x
  3. Step 3: Cross multiply
    647,562.43x = 893,614.02 × 357,185.53
  4. Step 4: Simplify right side
    647,562.43x = 319,185,992,881.06
  5. Step 5: Solve for x
    x = 319,185,992,881.06/647,562.43
  6. Step 6: Final answer
    x = 492,903.82

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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.