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Finding the Fourth Proportional to 722,398.80, 996,900.26 and 416,475.76

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Solution

The fourth proportional to 722,398.80, 996,900.26 and 416,475.76 is: 574,730.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,398.80 : 996,900.26 = 416,475.76 : x
  2. Step 2: Convert to fraction form
    722,398.80/996,900.26 = 416,475.76/x
  3. Step 3: Cross multiply
    722,398.80x = 996,900.26 × 416,475.76
  4. Step 4: Simplify right side
    722,398.80x = 415,184,793,427.70
  5. Step 5: Solve for x
    x = 415,184,793,427.70/722,398.80
  6. Step 6: Final answer
    x = 574,730.74

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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.