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Finding the Fourth Proportional to 589,399.60, 884,099.40 and 509,220.40

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Solution

The fourth proportional to 589,399.60, 884,099.40 and 509,220.40 is: 763,830.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,399.60 : 884,099.40 = 509,220.40 : x
  2. Step 2: Convert to fraction form
    589,399.60/884,099.40 = 509,220.40/x
  3. Step 3: Cross multiply
    589,399.60x = 884,099.40 × 509,220.40
  4. Step 4: Simplify right side
    589,399.60x = 450,201,450,107.76
  5. Step 5: Solve for x
    x = 450,201,450,107.76/589,399.60
  6. Step 6: Final answer
    x = 763,830.60

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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.