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Finding the Fourth Proportional to 494,869.60, 742,304.40 and 437,788.90

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Solution

The fourth proportional to 494,869.60, 742,304.40 and 437,788.90 is: 656,683.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,869.60 : 742,304.40 = 437,788.90 : x
  2. Step 2: Convert to fraction form
    494,869.60/742,304.40 = 437,788.90/x
  3. Step 3: Cross multiply
    494,869.60x = 742,304.40 × 437,788.90
  4. Step 4: Simplify right side
    494,869.60x = 324,972,626,741.16
  5. Step 5: Solve for x
    x = 324,972,626,741.16/494,869.60
  6. Step 6: Final answer
    x = 656,683.35

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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.