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Finding the Fourth Proportional to 676,651.76, 933,809.80 and 374,826.32

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Solution

The fourth proportional to 676,651.76, 933,809.80 and 374,826.32 is: 517,277.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,651.76 : 933,809.80 = 374,826.32 : x
  2. Step 2: Convert to fraction form
    676,651.76/933,809.80 = 374,826.32/x
  3. Step 3: Cross multiply
    676,651.76x = 933,809.80 × 374,826.32
  4. Step 4: Simplify right side
    676,651.76x = 350,016,490,913.94
  5. Step 5: Solve for x
    x = 350,016,490,913.94/676,651.76
  6. Step 6: Final answer
    x = 517,277.15

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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.