Home / 989,665.70-1,365,656.96-581,784.73

Finding the Fourth Proportional to 989,665.70, 1,365,656.96 and 581,784.73

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Solution

The fourth proportional to 989,665.70, 1,365,656.96 and 581,784.73 is: 802,814.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,665.70 : 1,365,656.96 = 581,784.73 : x
  2. Step 2: Convert to fraction form
    989,665.70/1,365,656.96 = 581,784.73/x
  3. Step 3: Cross multiply
    989,665.70x = 1,365,656.96 × 581,784.73
  4. Step 4: Simplify right side
    989,665.70x = 794,518,363,786.54
  5. Step 5: Solve for x
    x = 794,518,363,786.54/989,665.70
  6. Step 6: Final answer
    x = 802,814.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.