Home / 885,905.60-1,328,858.40-649,709.60

Finding the Fourth Proportional to 885,905.60, 1,328,858.40 and 649,709.60

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Solution

The fourth proportional to 885,905.60, 1,328,858.40 and 649,709.60 is: 974,564.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,905.60 : 1,328,858.40 = 649,709.60 : x
  2. Step 2: Convert to fraction form
    885,905.60/1,328,858.40 = 649,709.60/x
  3. Step 3: Cross multiply
    885,905.60x = 1,328,858.40 × 649,709.60
  4. Step 4: Simplify right side
    885,905.60x = 863,372,059,520.64
  5. Step 5: Solve for x
    x = 863,372,059,520.64/885,905.60
  6. Step 6: Final answer
    x = 974,564.40

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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.