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Finding the Fourth Proportional to 570,914.40, 856,112.40 and 215,810.40

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Solution

The fourth proportional to 570,914.40, 856,112.40 and 215,810.40 is: 323,617.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,914.40 : 856,112.40 = 215,810.40 : x
  2. Step 2: Convert to fraction form
    570,914.40/856,112.40 = 215,810.40/x
  3. Step 3: Cross multiply
    570,914.40x = 856,112.40 × 215,810.40
  4. Step 4: Simplify right side
    570,914.40x = 184,757,959,488.96
  5. Step 5: Solve for x
    x = 184,757,959,488.96/570,914.40
  6. Step 6: Final answer
    x = 323,617.62

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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.