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Finding the Fourth Proportional to 485,034.03, 723,757.70 and 434,600.37

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Solution

The fourth proportional to 485,034.03, 723,757.70 and 434,600.37 is: 648,501.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,034.03 : 723,757.70 = 434,600.37 : x
  2. Step 2: Convert to fraction form
    485,034.03/723,757.70 = 434,600.37/x
  3. Step 3: Cross multiply
    485,034.03x = 723,757.70 × 434,600.37
  4. Step 4: Simplify right side
    485,034.03x = 314,545,365,296.85
  5. Step 5: Solve for x
    x = 314,545,365,296.85/485,034.03
  6. Step 6: Final answer
    x = 648,501.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.