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Finding the Fourth Proportional to 723,688.32, 998,560.80 and 437,016.48

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Solution

The fourth proportional to 723,688.32, 998,560.80 and 437,016.48 is: 603,004.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,688.32 : 998,560.80 = 437,016.48 : x
  2. Step 2: Convert to fraction form
    723,688.32/998,560.80 = 437,016.48/x
  3. Step 3: Cross multiply
    723,688.32x = 998,560.80 × 437,016.48
  4. Step 4: Simplify right side
    723,688.32x = 436,387,525,881.98
  5. Step 5: Solve for x
    x = 436,387,525,881.98/723,688.32
  6. Step 6: Final answer
    x = 603,004.79

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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.