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Finding the Fourth Proportional to 734,553.60, 1,101,830.40 and 509,438.40

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Solution

The fourth proportional to 734,553.60, 1,101,830.40 and 509,438.40 is: 764,157.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,553.60 : 1,101,830.40 = 509,438.40 : x
  2. Step 2: Convert to fraction form
    734,553.60/1,101,830.40 = 509,438.40/x
  3. Step 3: Cross multiply
    734,553.60x = 1,101,830.40 × 509,438.40
  4. Step 4: Simplify right side
    734,553.60x = 561,314,716,047.36
  5. Step 5: Solve for x
    x = 561,314,716,047.36/734,553.60
  6. Step 6: Final answer
    x = 764,157.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.