Home / 771,260.60-1,154,558.10-687,279.80

Finding the Fourth Proportional to 771,260.60, 1,154,558.10 and 687,279.80

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Solution

The fourth proportional to 771,260.60, 1,154,558.10 and 687,279.80 is: 1,028,840.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,260.60 : 1,154,558.10 = 687,279.80 : x
  2. Step 2: Convert to fraction form
    771,260.60/1,154,558.10 = 687,279.80/x
  3. Step 3: Cross multiply
    771,260.60x = 1,154,558.10 × 687,279.80
  4. Step 4: Simplify right side
    771,260.60x = 793,504,460,056.38
  5. Step 5: Solve for x
    x = 793,504,460,056.38/771,260.60
  6. Step 6: Final answer
    x = 1,028,840.91

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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.