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Finding the Fourth Proportional to 424,352.40, 636,814.84 and 175,028.88

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Solution

The fourth proportional to 424,352.40, 636,814.84 and 175,028.88 is: 262,661.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,352.40 : 636,814.84 = 175,028.88 : x
  2. Step 2: Convert to fraction form
    424,352.40/636,814.84 = 175,028.88/x
  3. Step 3: Cross multiply
    424,352.40x = 636,814.84 × 175,028.88
  4. Step 4: Simplify right side
    424,352.40x = 111,460,988,212.58
  5. Step 5: Solve for x
    x = 111,460,988,212.58/424,352.40
  6. Step 6: Final answer
    x = 262,661.38

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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.