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Finding the Fourth Proportional to 723,692.45, 998,041.82 and 451,785.37

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Solution

The fourth proportional to 723,692.45, 998,041.82 and 451,785.37 is: 623,055.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,692.45 : 998,041.82 = 451,785.37 : x
  2. Step 2: Convert to fraction form
    723,692.45/998,041.82 = 451,785.37/x
  3. Step 3: Cross multiply
    723,692.45x = 998,041.82 × 451,785.37
  4. Step 4: Simplify right side
    723,692.45x = 450,900,688,170.14
  5. Step 5: Solve for x
    x = 450,900,688,170.14/723,692.45
  6. Step 6: Final answer
    x = 623,055.68

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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.