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Finding the Fourth Proportional to 676,764.88, 933,846.56 and 404,733.40

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Solution

The fourth proportional to 676,764.88, 933,846.56 and 404,733.40 is: 558,478.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,764.88 : 933,846.56 = 404,733.40 : x
  2. Step 2: Convert to fraction form
    676,764.88/933,846.56 = 404,733.40/x
  3. Step 3: Cross multiply
    676,764.88x = 933,846.56 × 404,733.40
  4. Step 4: Simplify right side
    676,764.88x = 377,958,893,307.10
  5. Step 5: Solve for x
    x = 377,958,893,307.10/676,764.88
  6. Step 6: Final answer
    x = 558,478.88

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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.