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Finding the Fourth Proportional to 647,562.93, 893,614.71 and 357,186.03

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Solution

The fourth proportional to 647,562.93, 893,614.71 and 357,186.03 is: 492,904.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,562.93 : 893,614.71 = 357,186.03 : x
  2. Step 2: Convert to fraction form
    647,562.93/893,614.71 = 357,186.03/x
  3. Step 3: Cross multiply
    647,562.93x = 893,614.71 × 357,186.03
  4. Step 4: Simplify right side
    647,562.93x = 319,186,686,146.43
  5. Step 5: Solve for x
    x = 319,186,686,146.43/647,562.93
  6. Step 6: Final answer
    x = 492,904.51

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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.