Home / 489,664.24-734,411.70-129,837.40

Finding the Fourth Proportional to 489,664.24, 734,411.70 and 129,837.40

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Solution

The fourth proportional to 489,664.24, 734,411.70 and 129,837.40 is: 194,733.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,664.24 : 734,411.70 = 129,837.40 : x
  2. Step 2: Convert to fraction form
    489,664.24/734,411.70 = 129,837.40/x
  3. Step 3: Cross multiply
    489,664.24x = 734,411.70 × 129,837.40
  4. Step 4: Simplify right side
    489,664.24x = 95,354,105,657.58
  5. Step 5: Solve for x
    x = 95,354,105,657.58/489,664.24
  6. Step 6: Final answer
    x = 194,733.65

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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.