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Finding the Fourth Proportional to 655,064.16, 903,986.88 and 368,584.80

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Solution

The fourth proportional to 655,064.16, 903,986.88 and 368,584.80 is: 508,646.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,064.16 : 903,986.88 = 368,584.80 : x
  2. Step 2: Convert to fraction form
    655,064.16/903,986.88 = 368,584.80/x
  3. Step 3: Cross multiply
    655,064.16x = 903,986.88 × 368,584.80
  4. Step 4: Simplify right side
    655,064.16x = 333,195,823,367.42
  5. Step 5: Solve for x
    x = 333,195,823,367.42/655,064.16
  6. Step 6: Final answer
    x = 508,646.09

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1.5x scale

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.