Home / 856,077.96-1,284,201.89-316,475.60

Finding the Fourth Proportional to 856,077.96, 1,284,201.89 and 316,475.60

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Solution

The fourth proportional to 856,077.96, 1,284,201.89 and 316,475.60 is: 474,744.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,077.96 : 1,284,201.89 = 316,475.60 : x
  2. Step 2: Convert to fraction form
    856,077.96/1,284,201.89 = 316,475.60/x
  3. Step 3: Cross multiply
    856,077.96x = 1,284,201.89 × 316,475.60
  4. Step 4: Simplify right side
    856,077.96x = 406,418,562,076.51
  5. Step 5: Solve for x
    x = 406,418,562,076.51/856,077.96
  6. Step 6: Final answer
    x = 474,744.80

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1.5x scale

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.