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Finding the Fourth Proportional to 424,408.71, 636,714.27 and 124,899.06

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Solution

The fourth proportional to 424,408.71, 636,714.27 and 124,899.06 is: 187,378.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,408.71 : 636,714.27 = 124,899.06 : x
  2. Step 2: Convert to fraction form
    424,408.71/636,714.27 = 124,899.06/x
  3. Step 3: Cross multiply
    424,408.71x = 636,714.27 × 124,899.06
  4. Step 4: Simplify right side
    424,408.71x = 79,525,016,199.26
  5. Step 5: Solve for x
    x = 79,525,016,199.26/424,408.71
  6. Step 6: Final answer
    x = 187,378.38

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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.