Home / 911,312.80-1,365,000.90-490,096.60

Finding the Fourth Proportional to 911,312.80, 1,365,000.90 and 490,096.60

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Solution

The fourth proportional to 911,312.80, 1,365,000.90 and 490,096.60 is: 734,086.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,312.80 : 1,365,000.90 = 490,096.60 : x
  2. Step 2: Convert to fraction form
    911,312.80/1,365,000.90 = 490,096.60/x
  3. Step 3: Cross multiply
    911,312.80x = 1,365,000.90 × 490,096.60
  4. Step 4: Simplify right side
    911,312.80x = 668,982,300,086.94
  5. Step 5: Solve for x
    x = 668,982,300,086.94/911,312.80
  6. Step 6: Final answer
    x = 734,086.36

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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.