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Finding the Fourth Proportional to 424,010.60, 636,015.90 and 306,506.60

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Solution

The fourth proportional to 424,010.60, 636,015.90 and 306,506.60 is: 459,759.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,010.60 : 636,015.90 = 306,506.60 : x
  2. Step 2: Convert to fraction form
    424,010.60/636,015.90 = 306,506.60/x
  3. Step 3: Cross multiply
    424,010.60x = 636,015.90 × 306,506.60
  4. Step 4: Simplify right side
    424,010.60x = 194,943,071,054.94
  5. Step 5: Solve for x
    x = 194,943,071,054.94/424,010.60
  6. Step 6: Final answer
    x = 459,759.90

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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.