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Finding the Fourth Proportional to 570,463.92, 786,993 and 343,983.60

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Solution

The fourth proportional to 570,463.92, 786,993 and 343,983.60 is: 474,548.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,463.92 : 786,993 = 343,983.60 : x
  2. Step 2: Convert to fraction form
    570,463.92/786,993 = 343,983.60/x
  3. Step 3: Cross multiply
    570,463.92x = 786,993 × 343,983.60
  4. Step 4: Simplify right side
    570,463.92x = 270,712,685,314.80
  5. Step 5: Solve for x
    x = 270,712,685,314.80/570,463.92
  6. Step 6: Final answer
    x = 474,548.30

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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.