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Finding the Fourth Proportional to 560,041.86, 840,342.96 and 256,435.34

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Solution

The fourth proportional to 560,041.86, 840,342.96 and 256,435.34 is: 384,781.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,041.86 : 840,342.96 = 256,435.34 : x
  2. Step 2: Convert to fraction form
    560,041.86/840,342.96 = 256,435.34/x
  3. Step 3: Cross multiply
    560,041.86x = 840,342.96 × 256,435.34
  4. Step 4: Simplify right side
    560,041.86x = 215,493,632,664.21
  5. Step 5: Solve for x
    x = 215,493,632,664.21/560,041.86
  6. Step 6: Final answer
    x = 384,781.30

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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.