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Finding the Fourth Proportional to 424,403.69, 636,603.44 and 104,554.94

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Solution

The fourth proportional to 424,403.69, 636,603.44 and 104,554.94 is: 156,831.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,403.69 : 636,603.44 = 104,554.94 : x
  2. Step 2: Convert to fraction form
    424,403.69/636,603.44 = 104,554.94/x
  3. Step 3: Cross multiply
    424,403.69x = 636,603.44 × 104,554.94
  4. Step 4: Simplify right side
    424,403.69x = 66,560,030,767.20
  5. Step 5: Solve for x
    x = 66,560,030,767.20/424,403.69
  6. Step 6: Final answer
    x = 156,831.89

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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.