Home / 1,237,328.70-1,856,004.01-489,374.78

Finding the Fourth Proportional to 1,237,328.70, 1,856,004.01 and 489,374.78

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Solution

The fourth proportional to 1,237,328.70, 1,856,004.01 and 489,374.78 is: 734,066.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237,328.70 : 1,856,004.01 = 489,374.78 : x
  2. Step 2: Convert to fraction form
    1,237,328.70/1,856,004.01 = 489,374.78/x
  3. Step 3: Cross multiply
    1,237,328.70x = 1,856,004.01 × 489,374.78
  4. Step 4: Simplify right side
    1,237,328.70x = 908,281,554,072.87
  5. Step 5: Solve for x
    x = 908,281,554,072.87/1,237,328.70
  6. Step 6: Final answer
    x = 734,066.50

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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.