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Finding the Fourth Proportional to 572,350.40, 789,392.86 and 507,009.12

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Solution

The fourth proportional to 572,350.40, 789,392.86 and 507,009.12 is: 699,273.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,350.40 : 789,392.86 = 507,009.12 : x
  2. Step 2: Convert to fraction form
    572,350.40/789,392.86 = 507,009.12/x
  3. Step 3: Cross multiply
    572,350.40x = 789,392.86 × 507,009.12
  4. Step 4: Simplify right side
    572,350.40x = 400,229,375,055.14
  5. Step 5: Solve for x
    x = 400,229,375,055.14/572,350.40
  6. Step 6: Final answer
    x = 699,273.34

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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.