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Finding the Fourth Proportional to 723,656.77, 997,992.87 and 451,749.90

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Solution

The fourth proportional to 723,656.77, 997,992.87 and 451,749.90 is: 623,006.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,656.77 : 997,992.87 = 451,749.90 : x
  2. Step 2: Convert to fraction form
    723,656.77/997,992.87 = 451,749.90/x
  3. Step 3: Cross multiply
    723,656.77x = 997,992.87 × 451,749.90
  4. Step 4: Simplify right side
    723,656.77x = 450,843,179,223.21
  5. Step 5: Solve for x
    x = 450,843,179,223.21/723,656.77
  6. Step 6: Final answer
    x = 623,006.93

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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.