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Finding the Fourth Proportional to 676,745.85, 933,909.51 and 370,819.76

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Solution

The fourth proportional to 676,745.85, 933,909.51 and 370,819.76 is: 511,731.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,745.85 : 933,909.51 = 370,819.76 : x
  2. Step 2: Convert to fraction form
    676,745.85/933,909.51 = 370,819.76/x
  3. Step 3: Cross multiply
    676,745.85x = 933,909.51 × 370,819.76
  4. Step 4: Simplify right side
    676,745.85x = 346,312,097,080.94
  5. Step 5: Solve for x
    x = 346,312,097,080.94/676,745.85
  6. Step 6: Final answer
    x = 511,731.39

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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.