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Finding the Fourth Proportional to 526,527.40, 789,560.70 and 210,879.40

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Solution

The fourth proportional to 526,527.40, 789,560.70 and 210,879.40 is: 316,226.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,527.40 : 789,560.70 = 210,879.40 : x
  2. Step 2: Convert to fraction form
    526,527.40/789,560.70 = 210,879.40/x
  3. Step 3: Cross multiply
    526,527.40x = 789,560.70 × 210,879.40
  4. Step 4: Simplify right side
    526,527.40x = 166,502,086,679.58
  5. Step 5: Solve for x
    x = 166,502,086,679.58/526,527.40
  6. Step 6: Final answer
    x = 316,226.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.