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Finding the Fourth Proportional to 570,162.82, 786,783.46 and 315,518.26

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Solution

The fourth proportional to 570,162.82, 786,783.46 and 315,518.26 is: 435,392.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,162.82 : 786,783.46 = 315,518.26 : x
  2. Step 2: Convert to fraction form
    570,162.82/786,783.46 = 315,518.26/x
  3. Step 3: Cross multiply
    570,162.82x = 786,783.46 × 315,518.26
  4. Step 4: Simplify right side
    570,162.82x = 248,244,548,295.98
  5. Step 5: Solve for x
    x = 248,244,548,295.98/570,162.82
  6. Step 6: Final answer
    x = 435,392.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.