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Finding the Fourth Proportional to 507,752.42, 761,627.22 and 128,672.06

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Solution

The fourth proportional to 507,752.42, 761,627.22 and 128,672.06 is: 193,007.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,752.42 : 761,627.22 = 128,672.06 : x
  2. Step 2: Convert to fraction form
    507,752.42/761,627.22 = 128,672.06/x
  3. Step 3: Cross multiply
    507,752.42x = 761,627.22 × 128,672.06
  4. Step 4: Simplify right side
    507,752.42x = 98,000,143,349.47
  5. Step 5: Solve for x
    x = 98,000,143,349.47/507,752.42
  6. Step 6: Final answer
    x = 193,007.73

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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.