Home / 777,938.60-1,166,907.90-620,474.60

Finding the Fourth Proportional to 777,938.60, 1,166,907.90 and 620,474.60

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Solution

The fourth proportional to 777,938.60, 1,166,907.90 and 620,474.60 is: 930,711.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,938.60 : 1,166,907.90 = 620,474.60 : x
  2. Step 2: Convert to fraction form
    777,938.60/1,166,907.90 = 620,474.60/x
  3. Step 3: Cross multiply
    777,938.60x = 1,166,907.90 × 620,474.60
  4. Step 4: Simplify right side
    777,938.60x = 724,036,712,489.34
  5. Step 5: Solve for x
    x = 724,036,712,489.34/777,938.60
  6. Step 6: Final answer
    x = 930,711.90

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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.