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Finding the Fourth Proportional to 450,666.40, 675,999.60 and 376,938.40

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Solution

The fourth proportional to 450,666.40, 675,999.60 and 376,938.40 is: 565,407.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,666.40 : 675,999.60 = 376,938.40 : x
  2. Step 2: Convert to fraction form
    450,666.40/675,999.60 = 376,938.40/x
  3. Step 3: Cross multiply
    450,666.40x = 675,999.60 × 376,938.40
  4. Step 4: Simplify right side
    450,666.40x = 254,810,207,624.64
  5. Step 5: Solve for x
    x = 254,810,207,624.64/450,666.40
  6. Step 6: Final answer
    x = 565,407.60

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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.