Home / 647,731.43-893,829.05-357,346.73

Finding the Fourth Proportional to 647,731.43, 893,829.05 and 357,346.73

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Solution

The fourth proportional to 647,731.43, 893,829.05 and 357,346.73 is: 493,116.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,731.43 : 893,829.05 = 357,346.73 : x
  2. Step 2: Convert to fraction form
    647,731.43/893,829.05 = 357,346.73/x
  3. Step 3: Cross multiply
    647,731.43x = 893,829.05 × 357,346.73
  4. Step 4: Simplify right side
    647,731.43x = 319,406,888,644.35
  5. Step 5: Solve for x
    x = 319,406,888,644.35/647,731.43
  6. Step 6: Final answer
    x = 493,116.25

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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.