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Finding the Fourth Proportional to 437,370.68, 603,583.98 and 421,507.64

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Solution

The fourth proportional to 437,370.68, 603,583.98 and 421,507.64 is: 581,692.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,370.68 : 603,583.98 = 421,507.64 : x
  2. Step 2: Convert to fraction form
    437,370.68/603,583.98 = 421,507.64/x
  3. Step 3: Cross multiply
    437,370.68x = 603,583.98 × 421,507.64
  4. Step 4: Simplify right side
    437,370.68x = 254,415,258,951.61
  5. Step 5: Solve for x
    x = 254,415,258,951.61/437,370.68
  6. Step 6: Final answer
    x = 581,692.53

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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.