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Finding the Fourth Proportional to 655,014.84, 903,871.80 and 368,479.68

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Solution

The fourth proportional to 655,014.84, 903,871.80 and 368,479.68 is: 508,474.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,014.84 : 903,871.80 = 368,479.68 : x
  2. Step 2: Convert to fraction form
    655,014.84/903,871.80 = 368,479.68/x
  3. Step 3: Cross multiply
    655,014.84x = 903,871.80 × 368,479.68
  4. Step 4: Simplify right side
    655,014.84x = 333,058,391,625.02
  5. Step 5: Solve for x
    x = 333,058,391,625.02/655,014.84
  6. Step 6: Final answer
    x = 508,474.57

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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.