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Finding the Fourth Proportional to 647,993.48, 894,281.18 and 357,661.94

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Solution

The fourth proportional to 647,993.48, 894,281.18 and 357,661.94 is: 493,601.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,993.48 : 894,281.18 = 357,661.94 : x
  2. Step 2: Convert to fraction form
    647,993.48/894,281.18 = 357,661.94/x
  3. Step 3: Cross multiply
    647,993.48x = 894,281.18 × 357,661.94
  4. Step 4: Simplify right side
    647,993.48x = 319,850,335,484.57
  5. Step 5: Solve for x
    x = 319,850,335,484.57/647,993.48
  6. Step 6: Final answer
    x = 493,601.17

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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.