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Finding the Fourth Proportional to 526,555.40, 789,602.70 and 210,907.40

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Solution

The fourth proportional to 526,555.40, 789,602.70 and 210,907.40 is: 316,268.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,555.40 : 789,602.70 = 210,907.40 : x
  2. Step 2: Convert to fraction form
    526,555.40/789,602.70 = 210,907.40/x
  3. Step 3: Cross multiply
    526,555.40x = 789,602.70 × 210,907.40
  4. Step 4: Simplify right side
    526,555.40x = 166,533,052,489.98
  5. Step 5: Solve for x
    x = 166,533,052,489.98/526,555.40
  6. Step 6: Final answer
    x = 316,268.82

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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.