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Finding the Fourth Proportional to 644,306.40, 966,459.60 and 629,544.15

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Solution

The fourth proportional to 644,306.40, 966,459.60 and 629,544.15 is: 944,316.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,306.40 : 966,459.60 = 629,544.15 : x
  2. Step 2: Convert to fraction form
    644,306.40/966,459.60 = 629,544.15/x
  3. Step 3: Cross multiply
    644,306.40x = 966,459.60 × 629,544.15
  4. Step 4: Simplify right side
    644,306.40x = 608,428,987,391.34
  5. Step 5: Solve for x
    x = 608,428,987,391.34/644,306.40
  6. Step 6: Final answer
    x = 944,316.23

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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.