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Finding the Fourth Proportional to 676,302.76, 933,296.34 and 389,820.88

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Solution

The fourth proportional to 676,302.76, 933,296.34 and 389,820.88 is: 537,951.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,302.76 : 933,296.34 = 389,820.88 : x
  2. Step 2: Convert to fraction form
    676,302.76/933,296.34 = 389,820.88/x
  3. Step 3: Cross multiply
    676,302.76x = 933,296.34 × 389,820.88
  4. Step 4: Simplify right side
    676,302.76x = 363,818,400,559.58
  5. Step 5: Solve for x
    x = 363,818,400,559.58/676,302.76
  6. Step 6: Final answer
    x = 537,951.97

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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.