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Finding the Fourth Proportional to 507,050.60, 699,510.18 and 305,734.76

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Solution

The fourth proportional to 507,050.60, 699,510.18 and 305,734.76 is: 421,781.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,050.60 : 699,510.18 = 305,734.76 : x
  2. Step 2: Convert to fraction form
    507,050.60/699,510.18 = 305,734.76/x
  3. Step 3: Cross multiply
    507,050.60x = 699,510.18 × 305,734.76
  4. Step 4: Simplify right side
    507,050.60x = 213,864,576,999.86
  5. Step 5: Solve for x
    x = 213,864,576,999.86/507,050.60
  6. Step 6: Final answer
    x = 421,781.53

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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.