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Finding the Fourth Proportional to 507,143.25, 760,430.29 and 347,399.73

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Solution

The fourth proportional to 507,143.25, 760,430.29 and 347,399.73 is: 520,904.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,143.25 : 760,430.29 = 347,399.73 : x
  2. Step 2: Convert to fraction form
    507,143.25/760,430.29 = 347,399.73/x
  3. Step 3: Cross multiply
    507,143.25x = 760,430.29 × 347,399.73
  4. Step 4: Simplify right side
    507,143.25x = 264,173,277,429.82
  5. Step 5: Solve for x
    x = 264,173,277,429.82/507,143.25
  6. Step 6: Final answer
    x = 520,904.65

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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.