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Finding the Fourth Proportional to 475,365.36, 655,985.40 and 284,264.88

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Solution

The fourth proportional to 475,365.36, 655,985.40 and 284,264.88 is: 392,274.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,365.36 : 655,985.40 = 284,264.88 : x
  2. Step 2: Convert to fraction form
    475,365.36/655,985.40 = 284,264.88/x
  3. Step 3: Cross multiply
    475,365.36x = 655,985.40 × 284,264.88
  4. Step 4: Simplify right side
    475,365.36x = 186,473,611,012.75
  5. Step 5: Solve for x
    x = 186,473,611,012.75/475,365.36
  6. Step 6: Final answer
    x = 392,274.29

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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.