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Finding the Fourth Proportional to 570,505.60, 856,233.54 and 300,730.60

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Solution

The fourth proportional to 570,505.60, 856,233.54 and 300,730.60 is: 451,346.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,505.60 : 856,233.54 = 300,730.60 : x
  2. Step 2: Convert to fraction form
    570,505.60/856,233.54 = 300,730.60/x
  3. Step 3: Cross multiply
    570,505.60x = 856,233.54 × 300,730.60
  4. Step 4: Simplify right side
    570,505.60x = 257,495,626,224.32
  5. Step 5: Solve for x
    x = 257,495,626,224.32/570,505.60
  6. Step 6: Final answer
    x = 451,346.36

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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.