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Finding the Fourth Proportional to 570,157.38, 786,763.78 and 340,668.98

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Solution

The fourth proportional to 570,157.38, 786,763.78 and 340,668.98 is: 470,091.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,157.38 : 786,763.78 = 340,668.98 : x
  2. Step 2: Convert to fraction form
    570,157.38/786,763.78 = 340,668.98/x
  3. Step 3: Cross multiply
    570,157.38x = 786,763.78 × 340,668.98
  4. Step 4: Simplify right side
    570,157.38x = 268,026,014,433.54
  5. Step 5: Solve for x
    x = 268,026,014,433.54/570,157.38
  6. Step 6: Final answer
    x = 470,091.28

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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.