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Finding the Fourth Proportional to 455,840.76, 680,918.55 and 337,742.76

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Solution

The fourth proportional to 455,840.76, 680,918.55 and 337,742.76 is: 504,508.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,840.76 : 680,918.55 = 337,742.76 : x
  2. Step 2: Convert to fraction form
    455,840.76/680,918.55 = 337,742.76/x
  3. Step 3: Cross multiply
    455,840.76x = 680,918.55 × 337,742.76
  4. Step 4: Simplify right side
    455,840.76x = 229,975,310,412.20
  5. Step 5: Solve for x
    x = 229,975,310,412.20/455,840.76
  6. Step 6: Final answer
    x = 504,508.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.