Home / 976,490.96-1,347,579.23-557,378.30

Finding the Fourth Proportional to 976,490.96, 1,347,579.23 and 557,378.30

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Solution

The fourth proportional to 976,490.96, 1,347,579.23 and 557,378.30 is: 769,194.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,490.96 : 1,347,579.23 = 557,378.30 : x
  2. Step 2: Convert to fraction form
    976,490.96/1,347,579.23 = 557,378.30/x
  3. Step 3: Cross multiply
    976,490.96x = 1,347,579.23 × 557,378.30
  4. Step 4: Simplify right side
    976,490.96x = 751,111,420,914.77
  5. Step 5: Solve for x
    x = 751,111,420,914.77/976,490.96
  6. Step 6: Final answer
    x = 769,194.45

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Double scale
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1.5x scale

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.