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Finding the Fourth Proportional to 516,442.92, 712,580.66 and 301,485.42

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Solution

The fourth proportional to 516,442.92, 712,580.66 and 301,485.42 is: 415,985.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,442.92 : 712,580.66 = 301,485.42 : x
  2. Step 2: Convert to fraction form
    516,442.92/712,580.66 = 301,485.42/x
  3. Step 3: Cross multiply
    516,442.92x = 712,580.66 × 301,485.42
  4. Step 4: Simplify right side
    516,442.92x = 214,832,679,563.98
  5. Step 5: Solve for x
    x = 214,832,679,563.98/516,442.92
  6. Step 6: Final answer
    x = 415,985.33

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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.