Home / 885,819.60-1,326,761.10-728,355.60

Finding the Fourth Proportional to 885,819.60, 1,326,761.10 and 728,355.60

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Solution

The fourth proportional to 885,819.60, 1,326,761.10 and 728,355.60 is: 1,090,914.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,819.60 : 1,326,761.10 = 728,355.60 : x
  2. Step 2: Convert to fraction form
    885,819.60/1,326,761.10 = 728,355.60/x
  3. Step 3: Cross multiply
    885,819.60x = 1,326,761.10 × 728,355.60
  4. Step 4: Simplify right side
    885,819.60x = 966,353,877,047.16
  5. Step 5: Solve for x
    x = 966,353,877,047.16/885,819.60
  6. Step 6: Final answer
    x = 1,090,914.99

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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.