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Finding the Fourth Proportional to 655,776.88, 904,954.38 and 369,290.76

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Solution

The fourth proportional to 655,776.88, 904,954.38 and 369,290.76 is: 509,611.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,776.88 : 904,954.38 = 369,290.76 : x
  2. Step 2: Convert to fraction form
    655,776.88/904,954.38 = 369,290.76/x
  3. Step 3: Cross multiply
    655,776.88x = 904,954.38 × 369,290.76
  4. Step 4: Simplify right side
    655,776.88x = 334,191,290,755.53
  5. Step 5: Solve for x
    x = 334,191,290,755.53/655,776.88
  6. Step 6: Final answer
    x = 509,611.27

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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.